| Nominal Species (n = 1545) | Present allocation (n = 674) | Ref. |
|---|---|---|
| Leucaspius abruptus Heckel & Kner, 1858 | Leucaspius delineatus | 13696 |
| Scardinius acarnanicus Economidis, 1991 | Scardinius acarnanicus | 13696 |
| Eremichthys acros Hubbs & Miller, 1948 | Eremichthys acros | 86798 |
| Alburnus acutus Heckel, 1843 | Alburnus alburnus | 93382 |
| Alburnus acutus Lapham, 1854 | Notropis atherinoides | 33021 |
| Phoxinus adagumicus Artaev, Turbanov, Bolotovskiy, Gandlin & Levin, 2024 | Phoxinus adagumicus | 131041 |
| Squalius adanaensis Turan, Kottelat & Doğan, 2013 | Squalius adanaensis | 93268 |
| Leuciscus adele Warpachowski, 1892 | Pseudaspius brandtii | 1441 |
| Leucos adspersus Heckel, 1843 | Delminichthys adspersus | 13696 |
| Phoxinellus adspersus fontinalis Karaman, 1972 | Telestes fontinalis | 13696 |
| Couesius adustus Woolman, 1894 | Couesius plumbeus | 33021 |
| Notropis aeneolus Hay, 1887 | Miniellus topeka | 33021 |
| Gobio aestivalis Girard, 1856 | Macrhybopsis aestivalis | 12965 |
| Hybopsis aestivalis marconis Jordan & Gilbert, 1886 | Macrhybopsis marconis | 50838 |
| Algansea affinis Regan, 1907 | Algansea tincella | 33021 |
| Clinostomus affinis Girard, 1856 | Clinostomus funduloides | 33021 |
| Gila affinis Abbott, 1860 | Gila robusta | 33021 |
| Leuciscus agassii Valenciennes, 1844 | Telestes souffia | 13696 |
| Pimephales agassizii Cope, 1867 | Pimephales promelas | 33021 |
| Squalius agdamicus Kamensky, 1901 | Squalius agdamicus | 72459 |
| Squalius agdamicus (non Kamensky, 1901) | Squalius cephalus | 72459 |
| Notropis aguirrepequenoi Contreras-Balderas & Rivera-Teillery, 1973 | Notropis aguirrepequenoi | 81264 |
| Campostoma aikenii Cope, 1875 | Campostoma pullum | 33021 |
| Alburnus akili Battalgil, 1942 | Alburnus akili | 6376 |
| Alburnus alasanicus Kamensky, 1901 | Chondrostoma oxyrhynchum | 33021 |
| Leuciscus albidus Costa, 1838 | Alburnus albidus | 7442 |
| Leuciscus albiensis Valenciennes, 1844 | Squalius cephalus | 13696 |
| Lepidomeda albivallis Miller & Hubbs, 1960 | Lepidomeda albivallis | 86798 |
| Notropis albizonatus Warren & Burr, 1994 | Miniellus albizonatus | 40527 |
| Cyprinus albor (non Scopoli, 1786) | Alburnus alburnus | 55858 |
| Cyprinus albor Scopoli, 1786 | Alburnus arborella | 55858 |
| Aspius alborella (non De Filippi, 1844) | Alburnus alburnus | 55858 |
| Aspius alborella De Filippi, 1844 | Alburnus arborella | 55858 |
| Alburnus alborella lateristriga Canestrini, 1864 | Alburnus alburnus | 13696 |
| Alburnus alborella maxima Fatio, 1882 | Alburnus maximus | 120639 |
| Alburnus alborellus maximus Fatio, 1882 | Alburnus alburnus | |
| Notropis alborus Hubbs & Raney, 1947 | Miniellus alborus | 5723 |
| Cyprinus albula Nardo, 1827 | Squalius cephalus | 13696 |
| Leuciscus albuloides Valenciennes, 1844 | Alburnus chalcoides | 33021 |
| Aspius alburnoides Selys-longchamps, 1842 | Alburnus alburnus | 13696 |
| Leuciscus alburnoides Steindachner, 1866 | Squalius alburnoides | 106132 |
| Rutilus alburnoides hellenicus Stephanidis, 1971 | Tropidophoxinellus hellenicus | 46206 |
| Cyprinus alburnus Linnaeus, 1758 | Alburnus alburnus | 13696 |
| Alburnus alburnus belvica Karaman, 1924 | Alburnus belvica | 13696 |
| Alburnus alburnus charusini dagestanicus Petrov, 1926 | Alburnus alburnus | 13696 |
| Alburnus alburnus hohenackeri kumbaschensis Petrov, 1926 | Alburnus alburnus | 13696 |
| Alburnus alburnus hohenackeri persicus Petrov, 1926 | Alburnus hohenackeri | 33021 |
| Alburnus alburnus macedonicus (non Karaman, 1928) | Alburnus alburnus | 59043 |
| Alburnus alburnus macedonicus Karaman, 1928 | Alburnus macedonicus | 59043 |
| Alburnus alburnus strumicae Karaman, 1955 | Alburnus alburnus | 13696 |
| Alburnus alburnus thessalicus Stephanidis, 1950 | Alburnus alburnus | 13696 |
| Alburnus alburnus thessalicus Stephanidis, 1950 | Alburnus thessalicus | 116779 |
| Leuciscus albus Bonaparte, 1838 | Squalius albus | 13696 |
| Leuciscus albus (non Bonaparte, 1838) | Squalius cephalus | 59043 |
| Leuciscus albus Bonaparte, 1838 | Squalius cephalus | 93826 |
| Rutilus albus Marić, 2010 | Leucos albus | 87899 |
| Phoxinellus alepidotus Heckel, 1843 | Phoxinellus alepidotus | 13696 |
| Hudsonius aletes Jordan & Evermann, 1927 | Notropis texanus | 33021 |
| Squalius aliciae Jouy, 1881 | Lepidomeda aliciae | 33021 |
| Squalius aliciae (non Jouy, 1881) | Lepidomeda copei | 86798 |
| Pseudophoxinus alii Küçük, 2007 | Pseudophoxinus alii | 58389 |
| Chondrostoma almacai Coelho, Mesquita & Collares-Pereira, 2005 | Iberochondrostoma almacai | 55426 |
| Alburnellus altipinnis Cope, 1870 | Notropis altipinnis | 12965 |
| Notropis altipinnis chowanus Hubbs & Raney, 1948 | Notropis altipinnis | 33021 |
| Notropis altipinnis neusensis Hubbs & Raney, 1948 | Notropis altipinnis | 33021 |
| Notropis altipinnis tarensis Hubbs & Raney, 1948 | Notropis altipinnis | 33021 |
| Notropis altipinnis whitei Hubbs & Raney, 1948 | Notropis altipinnis | 33021 |
| Notropis altipinnis wrighti Hubbs & Raney, 1948 | Notropis altipinnis | 33021 |
| Lepidomeda altivelis Miller & Hubbs, 1960 | Lepidomeda altivelis | 86798 |
| Hudsonius altus Jordan, 1880 | Yuriria alta | 26282 |
| Leuciscus altus Valenciennes, 1844 | Leucos aula | 13696 |
| Phoxinus altus Warpachowski, 1887 | Rhynchocypris percnura | 13696 |
| Acrocheilus alutaceus Agassiz & Pickering, 1855 | Acrocheilus alutaceus | 5723 |
| Cyprinella alvarezdelvillari Contreras-Balderas & Lozano-Vilano, 1994 | Cyprinella alvarezdelvillari | 40526 |
| Algansea alvarezi Romero, 1967 | Algansea tincella | 33021 |
| Gila alvordensis Hubbs & Miller, 1972 | Siphateles alvordensis | 86798 |
| Alburnus amabilis Girard, 1856 | Notropis amabilis | 12965 |
| Algoma amara Girard, 1856 | Hybognathus amarus | 26282 |
| Hudsonius amarus Girard, 1856 | Notropis hudsonius | 33021 |
| Yuriria amatlana Domínguez-Domínguez, Pompa-Domínguez & Doadrio, 2007 | Yuriria amatlana | 82735 |
| Rutilus amblops Rafinesque, 1820 | Hybopsis amblops | 26282 |
| Algansea amecae Pérez-Rodríguez, Pérez-Ponce de León, Domínguez-Domínguez & Doadrio, 2009 | Algansea amecae | 82373 |
| Notropis amecae Chernoff & Miller, 1986 | Notropis amecae | 52300 |
| Cyprinus americanus Linnaeus, 1766 | Notemigonus crysoleucas | 33021 |
| Plagyrus americanus Cope, 1865 | Notemigonus crysoleucas | 33021 |
| Alburnus amirkabiri Mousavi-Sabet, Vatandoust, Khataminejad, Eagderi, Abbasi, Nasri, Jouladeh & Vasil'eva, 2015 | Alburnus doriae | 106247 |
| Notropis ammophilus Suttkus & Boschung, 1990 | Miniellus ammophilus | 3814 |
| Tirodon amnigenus Hay, 1882 | Hybognathus nuchalis | 33021 |
| Notropis amnis Hubbs & Greene, 1951 | Hybopsis amnis | 3814 |
| Alburnellus amoenus Abbott, 1874 | Notropis amoenus | 12965 |
| Notropis amplamala Pera & Armbruster, 2006 | Ericymba amplamala | 57709 |
| Cyprinella analostana Girard, 1859 | Cyprinella analostana | 86798 |
| Acanthorutilus anatolicus Hankó, 1925 | Pseudophoxinus anatolicus | 33550 |
| Acanthorutilus anatolicus caralis (non Battalgil, 1942) | Pseudophoxinus anatolicus | 78620 |
| Acanthorutilus anatolicus caralis Battalgil, 1942 | Pseudophoxinus caralis | 33550 |
| Leuciscus angrenicus Serov, 1941 | Leuciscus lehmanni | 1441 |
| Oreoleuciscus angusticephalus Bogutskaya, 2001 | Oreoleuciscus angusticephalus | 57727 |
| Cyprinus annoni Walbaum, 1792 | Alburnoides bipunctatus | 13696 |
| Exoglossum annulatum Rafinesque, 1818 | Exoglossum maxillingua | 33021 |
| Notropis anogenus Forbes, 1885 | Miniellus anogenus | 5723 |
| Rutilus anomalous Rafinesque, 1820 | Campostoma anomalum | 12965 |
| Campostoma anomalum oligolepis Hubbs & Greene, 1935 | Campostoma oligolepis | 26282 |
| Pseudophoxinus antalyae Bogutskaya, 1992 | Pseudophoxinus antalyae | 33550 |
| Algansea antica Cope, 1865 | Siphateles bicolor | 33021 |
| Pimephales anuli Kendall, 1903 | Pimephales promelas | 33021 |
| Algansea aphanea Barbour & Miller, 1978 | Algansea aphanea | 33475 |
| Leuciscus aphipsi Aleksandrov, 1927 | Squalius aphipsi | 26334 |
| Cyprinus aphya Linnaeus, 1758 | Phoxinus phoxinus | 13397 |
| Phoxinus apollonicus Bianco & De Bonis, 2015 | Phoxinus apollonicus | 105385 |
| Leuciscus apollonitis Richardson, 1857 | Scardinius erythrophthalmus | 13696 |
| Leuciscus aradensis Coelho, Bogutskaya, Rodrigues & Collares-Pereira, 1998 | Squalius aradensis | 28035 |
| Aspius arborella (non Bonaparte, 1841) | Alburnus alburnus | 55858 |
| Aspius arborella Bonaparte, 1841 | Alburnus arborella | 55858 |
| Leucos arcasii Steindachner, 1866 | Achondrostoma arcasii | 57917 |
| Hypsilepis ardens Cope, 1868 | Lythrurus ardens | 12965 |
| Gila ardesiaca Cope, 1875 | Richardsonius egregius | 33021 |
| Lavinia ardesiaca Snyder, 1913 | Lavinia exilicauda | 33021 |
| Alburnellus arge Cope, 1867 | Notropis photogenis | 33021 |
| Plargyrus argentatus Girard, 1856 | Luxilus cornutus | 33021 |
| Leuciscus argenteus Fitzinger, 1832 | Leuciscus leuciscus | 13696 |
| Leuciscus argenteus Storer, 1839 | Semotilus corporalis | 33021 |
| Plagopterus argentissimus Cope, 1874 | Plagopterus argentissimus | 86798 |
| Dionda argentosa Girard, 1856 | Dionda argentosa | 86798 |
| Pogonichthys argyreiosus Girard, 1854 | Pogonichthys macrolepidotus | 33021 |
| Abramis argyreus Valenciennes, 1844 | Abramis brama | 13696 |
| Hybognathus argyritis Girard, 1856 | Hybognathus argyritis | 86798 |
| Blicca argyroleuca Heckel, 1843 | Blicca bjoerkna | 13696 |
| Photogenis ariommus Cope, 1867 | Notropis ariommus | 12965 |
| Squalius aristotelis Özuluğ & Freyhof, 2011 | Squalius aristotelis | 87183 |
| Alburnus arquatus Fatio, 1882 | Alburnus alburnus | 13696 |
| Acanthobrama arrhada Heckel, 1843 | Acanthobrama marmid | 33550 |
| Leuciscus arrigonis Steindachner, 1866 | Parachondrostoma arrigonis | 13696 |
| Nocomis asper Lachner & Jenkins, 1971 | Nocomis asper | 86798 |
| Notropis asperifrons Suttkus & Raney, 1955 | Notropis asperifrons | 5723 |
| Cyprinus aspius Linnaeus, 1758 | Leuciscus aspius | 13696 |
| Aspius aspius taeniatus iblioides phragmiteti Berg, 1932 | Leuciscus aspius | 33021 |
| Achondrostoma asturicense Doadrio, Casal-López & Perea, 2023 | Achondrostoma asturicense | 128766 |
| Notropis atherinoides Rafinesque, 1818 | Notropis atherinoides | 3814 |
| Notropis atherinoides caddonis Meek, 1891 | Notropis atherinoides | 33021 |
| Notropis atrapiculus Snelson, 1972 | Lythrurus atrapiculus | 3814 |
| Siboma atraria Girard, 1856 | Gila atraria | 12965 |
| Siboma atraria longiceps Cope, 1875 | Gila atraria | 33021 |
| Cyprinus atratulus Hermann, 1804 | Rhinichthys atratulus | 12965 |
| Rhinichthys atratulus meleagris Agassiz, 1854 | Rhinichthys atratulus | 10937 |
| Cyprinus atromaculatus Mitchill, 1818 | Semotilus atromaculatus | 12965 |
| Cyprinus atronasus Mitchill, 1815 | Rhinichthys atratulus | 33021 |
| Alburnus atropatenae Berg, 1925 | Alburnus atropatenae | 39257 |
| Rutilus atropatenus Derjavin, 1937 | Pseudophoxinus atropatenus | 1441 |
| Alburnus attalus Özuluğ & Freyhof, 2007 | Alburnus attalus | 78144 |
| Squalius aula Bonaparte, 1841 | Leucos aula | 96829 |
| Rutilus aula karamani Vladykov & Petit, 1930 | Leucos basak | 96829 |
| Leucos aula ohridana Karaman, 1924 | Leucos basak | 96829 |
| Leucos aula prespensis Karaman, 1924 | Leucos basak | 96829 |
| Notropis aulidion Chernoff & Miller, 1986 | Notropis aulidion | 81264 |
| Moniana aurata Girard, 1856 | Cyprinella proserpina | 33021 |
| Notemigonus auratus Rafinesque, 1819 | Notemigonus crysoleucas | 33021 |
| Alburnus ausonii Bonaparte, 1845 | Alburnus alburnus | 13696 |
| Zophendum australe Jordan, 1880 | Algansea tincella | 33021 |
| Extrarius australis Hubbs & Ortenburger, 1929 | Macrhybopsis australis | 50838 |
| Alburnus avola Bonaparte, 1846 | Alburnus alburnus | 13696 |
| Chondrostoma awhasicum Kamensky, 1901 | Chondrostoma colchicum | 33021 |
| Squalidus baicalensis Dybowski, 1874 | Leuciscus baicalensis | 33021 |
| Squalidus baicalensis (non Dybowski, 1874) | Leuciscus leuciscus | 13696 |
| Notropis baileyi Suttkus & Raney, 1955 | Notropis baileyi | 5723 |
| Notropis bairdi Hubbs & Ortenburger, 1929 | Notropis bairdi | 5723 |
| Notropis bairdi buccula Cross, 1953 | Notropis buccula | 26282 |
| Leuciscus baldneri Valenciennes, 1844 | Alburnoides bipunctatus | 13696 |
| Alburnus baliki Bogutskaya, Küçük & Ünlü, 2000 | Alburnus baliki | 39257 |
| Abramis balleropsis Agassiz, 1835 | Ballerus sapa | 13696 |
| Cyprinus ballerus Linnaeus, 1758 | Ballerus ballerus | 7442 |
| Cyprinus balteatus Richardson, 1836 | Richardsonius balteatus | 1998 |
| Algansea barbata Álvarez & Cortés, 1964 | Algansea barbata | 27639 |
| Leucos basak Heckel, 1843 | Leucos basak | 96829 |
| Alburnus battalgilae Özuluğ & Freyhof, 2007 | Alburnus battalgilae | 78144 |
| Pseudophoxinus battalgilae Bogutskaya, 1997 | Pseudophoxinus battalgilae | 80565 |
| Squalius bearnensis Blanchard, 1866 | Leuciscus bearnensis | 13696 |
| Squalius bearnensis (non Blanchard, 1866) | Leuciscus burdigalensis | 59043 |
| Cyprinella beckwithi Girard, 1856 | Cyprinella lutrensis | 33021 |
| Minnilus bellus Hay, 1881 | Lythrurus bellus | 12965 |
| Notropis bellus alegnotus Snelson, 1972 | Lythrurus alegnotus | 110348 |
| Rutilus beoticus Stephanidis, 1939 | Telestes beoticus | 6376 |
| Squalius berak Heckel, 1843 | Squalius berak | 93268 |
| Squalius berak (non Heckel, 1843) | Squalius cephalus | 84537 |
| Leuciscus bergi Kashkarov, 1925 | Leuciscus bergi | 27116 |
| Pseudaspius bergi Jordan & Metz, 1913 | Rhynchocypris lagowskii | 56787 |
| Chondrostoma beysehirense Bogutskaya, 1997 | Chondrostoma beysehirense | 26679 |
| Algansea bicolor Girard, 1856 | Siphateles bicolor | 33021 |
| Gila bicolor euchila Hubbs & Miller, 1972 | Siphateles bicolor | 27116 |
| Gila bicolor eurysoma Williams & Bond, 1981 | Siphateles bicolor | 27116 |
| Gila bicolor isolata Hubbs & Miller, 1972 | Siphateles bicolor | 27116 |
| Gila bicolor newarkensis Hubbs & Miller, 1972 | Siphateles bicolor | 27116 |
| Gila bicolor snyderi Miller, 1973 | Siphateles bicolor | 27116 |
| Gila bicolor vaccaceps Bills & Bond, 1980 | Siphateles bicolor | 27116 |
| Hybopsis bifrenatus Cope, 1867 | Notropis bifrenatus | 12965 |
| Phoxinus bigerri Kottelat, 2007 | Phoxinus bigerri | 75055 |
| Semotilus biguttatus Kirtland, 1840 | Nocomis biguttatus | 12965 |
| Cyprinella billingsiana Cope, 1871 | Cyprinella lutrensis | 33021 |
| Cyprinus bipunctatus Bloch, 1782 | Alburnoides bipunctatus | 33550 |
| Alburnoides bipunctatus armeniensis (non Dadikyan, 1972) | Alburnoides bipunctatus | 82592 |
| Alburnoides bipunctatus armeniensis Dadikyan, 1972 | Alburnoides eichwaldii | 82592 |
| Alburnus bipunctatus ohridanus (non Karaman, 1928) | Alburnoides bipunctatus | 59043 |
| Alburnus bipunctatus ohridanus Karaman, 1928 | Alburnoides ohridanus | 81932 |
| Alburnoides bipunctatus rossicus (non Berg, 1924) | Alburnoides bipunctatus | 82592 |
| Alburnoides bipunctatus rossicus Berg, 1924 | Alburnoides rossicus | 82592 |
| Alburnoides bipunctatus rossicus kubanicus Bănărescu, 1964 | Alburnoides kubanicus | 13696 |
| Alburnoides bipunctatus smyrnaea Pellegrin, 1927 | Alburnoides bipunctatus | 13696 |
| Alburnoides bipunctatus strymonicus Chichkoff, 1940 | Alburnoides strymonicus | 116746 |
| Alburnoides bipunctatus thessalicus (non Stephanidis, 1950) | Alburnoides bipunctatus | 59043 |
| Alburnoides bipunctatus thessalicus Stephanidis, 1950 | Alburnoides thessalicus | 116746 |
| Alburnoides bipunctatus tzanevi Chichkoff, 1933 | Alburnoides bipunctatus | 13696 |
| Alburnus bipunctatus var. prespensis Karaman, 1924 | Alburnoides prespensis | 86870 |
| Hybopsis bivittatus Cope, 1872 | Gila atraria | 33021 |
| Cyprinus bjoerkna Linnaeus, 1758 | Blicca bjoerkna | 7442 |
| Blicca bjoerkna derjavini Dadikyan, 1970 | Blicca bjoerkna | 13696 |
| Blicca bjoerkna transcaucasica Berg, 1916 | Blicca bjoerkna | 13696 |
| Alburnops blennius Girard, 1856 | Notropis blennius | 12965 |
| Cyprinus blicca Bloch, 1782 | Blicca bjoerkna | 7442 |
| Cyprinus blockii Nau, 1787 | Alburnoides bipunctatus | 13696 |
| Notropis bocagrande Chernoff & Miller, 1982 | Cyprinella bocagrande | 42680 |
| Acanthobrama bogdanowi Kessler, 1877 | Capoetobrama kuschakewitschi | 1441 |
| Opsopoeodus bollmani Gilbert, 1891 | Notropis maculatus | 33021 |
| Notropis boops Gilbert, 1884 | Miniellus boops | 5723 |
| Gila boraxobius Williams & Bond, 1980 | Siphateles boraxobius | 86798 |
| Squalius borysthenicus Kessler, 1859 | Petroleuciscus borysthenicus | 13373 |
| Leuciscus borysthenicus heterandrius Battalgil, 1940 | Petroleuciscus borysthenicus | 13373 |
| Macrhybopsis boschungi Gilbert & Mayden, 2017 | Macrhybopsis boschungi | 116539 |
| Leuciscus boscii Valenciennes, 1844 | Notemigonus crysoleucas | 33021 |
| Leuciscus boucardi Günther, 1868 | Notropis boucardi | 27116 |
| Rhinichthys bowersi Goldsborough & Clark, 1908 | Pararhinichthys bowersi | 5723 |
| Plargyrus bowmani Girard, 1856 | Luxilus cornutus | 33021 |
| Phoxinus brachyurus Berg, 1912 | Phoxinus brachyurus | 1441 |
| Cyprinus brama Linnaeus, 1758 | Abramis brama | 7442 |
| Abramis brama bergi Grib & Vernidub, 1935 | Abramis brama | 13696 |
| Abramis brama danubii Pavlov, 1956 | Abramis brama | 13696 |
| Abramis brama orientalis Berg, 1949 | Abramis brama | 13696 |
| Abramis brama sinegorensis Lukash, 1925 | Abramis brama | 13696 |
| Alburnus brandtii Kessler, 1880 | Acanthobrama microlepis | 33550 |
| Telestes brandtii Dybowski, 1872 | Pseudaspius brandtii | 124637 |
| Telestes brandtii (non Dybowski, 1872) | Pseudaspius sachalinensis | 58051 |
| Notropis braytoni Jordan & Evermann, 1896 | Notropis braytoni | 5723 |
| Notropis brazosensis Hubbs & Bonham, 1951 | Notropis shumardi | 33021 |
| Gila brevicauda Norris, Fischer & Minckley, 2003 | Gila brevicauda | 49525 |
| Alburnus breviceps Heckel & Kner, 1858 | Alburnus alburnus | 13696 |
| Leuciscus brevirostris Mori, 1927 | Leuciscus waleckii | 33021 |
| Campostoma brevis Haseman, 1906 | Campostoma pullum | 33021 |
| Notropis brimleyi Bean, 1903 | Luxilus coccogenis | 33021 |
| Leuciscus brutius Costa, 1838 | Squalius cephalus | 13696 |
| Leuciscus bubalinus Baird & Girard, 1853 | Cyprinella lutrensis | 33021 |
| Ericymba buccata Cope, 1865 | Ericymba buccata | 86798 |
| Notropis buchanani Meek, 1896 | Notropis buchanani | 5723 |
| Cyprinus bullaris Rafinesque, 1817 | Semotilus corporalis | 33021 |
| Notropis burchi Fowler, 1942 | Notropis maculatus | 33021 |
| Leuciscus burdigalensis Valenciennes, 1844 | Leuciscus burdigalensis | 59043 |
| Pseudophoxinus burduricus Küçük, Gülle, Güçlü, Çiftçi & Erdoğan, 2013 | Pseudophoxinus burduricus | 94468 |
| Evarra bustamantei Navarro, 1955 | Evarra bustamantei | 3881 |
| Leuciscus cabeda Risso, 1827 | Squalius cephalus | 13696 |
| Leuciscus cabeda pamvoticus (non Stephanidis, 1939) | Squalius cephalus | 59043 |
| Leuciscus cabeda pamvoticus Stephanidis, 1939 | Squalius pamvoticus | 13696 |
| Chondrostoma caerulescens Blanchard, 1866 | Chondrostoma nasus | 13696 |
| Alburnus caeruleus Heckel, 1843 | Alburnus caeruleus | 33550 |
| Leuciscus caeruleus Yarrell, 1837 | Scardinius erythrophthalmus | 54621 |
| Photogenis caeruleus Jordan, 1877 | Cyprinella caerulea | 115966 |
| Notropis cahabae Mayden & Kuhajda, 1989 | Notropis cahabae | 5723 |
| Hybopsis cahni Hubbs & Crowe, 1956 | Erimystax cahni | 3814 |
| Notropis calabazas Lyons & Mercado-Silva, 2004 | Notropis calabazas | 54509 |
| Notropis calientis Jordan & Snyder, 1899 | Notropis calientis | 27639 |
| Leuciscus callensis Guichenot, 1850 | Pseudophoxinus callensis | 2801 |
| Campostoma callipteryx Cope, 1865 | Campostoma pullum | 33021 |
| Episema callisema Jordan, 1877 | Cyprinella callisema | 12965 |
| Photogenis callistius Jordan, 1877 | Cyprinella callistia | 10294 |
| Notropis callitaenia Bailey & Gibbs, 1956 | Cyprinella callitaenia | 3814 |
| Cliola camura Jordan & Meek, 1884 | Cyprinella camura | 10294 |
| Notropis candidus Suttkus, 1980 | Notropis candidus | 5723 |
| Alburnus capito Heckel, 1843 | Alburnus mossulensis | 33021 |
| Cyprinus capito Scopoli, 1786 | Squalius cephalus | 13696 |
| Squalius cappadocicus Özuluğ & Freyhof, 2011 | Squalius cappadocicus | 87183 |
| Notropis cardinalis Mayden, 1988 | Luxilus cardinalis | 26282 |
| Alburnus carianorum Freyhof, Kaya, Bayçelebi, Geiger & Turan, 2019 | Alburnus carianorum | 119731 |
| Cyprinus carinatus Pallas, 1814 | Vimba vimba | 13696 |
| Squalius carinus Özuluğ & Freyhof, 2011 | Squalius carinus | 87183 |
| Leuciscus carletoni Kendall, 1903 | Margariscus margarita | 1998 |
| Clinostomus carolinus Girard, 1856 | Clinostomus funduloides | 33021 |
| Leuciscus carolitertii Doadrio, 1988 | Squalius carolitertii | 13696 |
| Apocope carringtonii Cope, 1872 | Rhinichthys osculus | 80360 |
| Squalius castellanus Doadrio, Perea & Alonso, 2007 | Squalius castellanus | 75143 |
| Gobio cataractae Valenciennes, 1842 | Rhinichthys cataractae | 1998 |
| Rhinichthys cataractae smithi Nichols, 1916 | Rhinichthys cataractae | 36656 |
| Chilonemus cataractus Baird, 1851 | Semotilus corporalis | 33021 |
| Dionda catostomops Hubbs & Miller, 1977 | Tampichthys catostomops | 80389 |
| Phenacobius catostomus Jordan, 1877 | Phenacobius catostomus | 86798 |
| Alburnus caudimacula Heckel, 1846-49 | Alburnus mossulensis | 33021 |
| Cyprinus caurinus Richardson, 1836 | Mylocheilus caurinus | 1998 |
| Leuciscus cavedanus Bonaparte, 1838 | Squalius cephalus | 13696 |
| Notropis cayuga Meek, 1889 | Notropis bifrenatus | 33021 |
| Notropis cayuga atrocaudalis Evermann, 1892 | Notropis atrocaudalis | 26282 |
| Notropis celayensis Álvarez, 1958 | Yuriria alta | 33021 |
| Leucos cenisophius Bonaparte, 1841 | Rutilus rutilus | 13696 |
| Leucos cenisophius Bonaparte, 1845 | Rutilus rutilus | 13696 |
| Acanthobrama centisquama Heckel, 1843 | Acanthobrama centisquama | 33550 |
| Leuciscus cephaloides Battalgil, 1942 | Squalius cephaloides | 87183 |
| Leuciscus cephaloides (non Battalgil, 1942) | Squalius cephalus | 87183 |
| Squalius cephalopsis Heckel, 1843 | Squalius cephalus | 13696 |
| Cyprinus cephalus Linnaeus, 1758 | Squalius cephalus | 13696 |
| Semotilus cephalus Rafinesque, 1820 | Semotilus atromaculatus | 33021 |
| Squalius cephalus athurensis Roule & Cardaillac de Saint-Paul, 1903 | Squalius cephalus | 13696 |
| Squalius cephalus cavedanus var. prespensis Karaman, 1924 | Squalius cephalus | 13696 |
| Leuciscus cephalus macedonicus Karaman, 1955 | Squalius cephalus | 13696 |
| Leuciscus cephalus moreoticus (non Stephanidis, 1971) | Squalius cephalus | 59043 |
| Leuciscus cephalus moreoticus Stephanidis, 1971 | Squalius moreoticus | 59043 |
| Leuciscus cephalus orientalis aralychensis Barach, 1934 | Squalius cephalus | 13696 |
| Leuciscus cephalus orientalis ardebilicus Barach, 1934 | Squalius cephalus | 13696 |
| Leuciscus cephalus orientalis kaznakovi Berg, 1912 | Squalius cephalus | 13696 |
| Leuciscus cephalus orientalis thracicus Drensky, 1930 | Squalius cephalus | 13696 |
| Leuciscus cephalus orientalis zangicus Barach, 1934 | Squalius cephalus | 13696 |
| Leuciscus cephalus prespensis Fowler, 1977 | Squalius prespensis | 13696 |
| Leuciscus cephalus ruffoi Bianco & Recchia, 1983 | Squalius cephalus | 13696 |
| Leuciscus cephalus var. wjatkensis Lukasch, 1925 | Squalius cephalus | 13696 |
| Squalius cephalus vardarensis (non Karaman, 1928) | Squalius cephalus | 59043 |
| Squalius cephalus vardarensis Karaman, 1928 | Squalius vardarensis | 13696 |
| Cyprinella cercostigma Cope, 1868 | Cyprinella venusta | 33021 |
| Chondrostoma ceyhanense Küçük, Turan, Güçlü, Mutlu & Çiftci, 2017 | Chondrostoma ceyhanense | 123477 |
| Leuciscus chaignoni Vaillant, 1904 | Pseudophoxinus callensis | 2801 |
| Cyprinus chalcoides Güldenstädt, 1772 | Alburnus chalcoides | 13696 |
| Alburnus chalcoides aralensis Berg, 1923 | Alburnus chalcoides | 12965 |
| Alburnus chalcoides carinatus Battalgil, 1941 | Alburnus carinatus | 13696 |
| Alburnus chalcoides carinatus (non Battalgil, 1941) | Alburnus chalcoides | 75107 |
| Alburnus chalcoides danubicus (non Antipa, 1909) | Alburnus chalcoides | 75106 |
| Alburnus chalcoides danubicus Antipa, 1909 | Alburnus danubicus | 75106 |
| Alburnus chalcoides derjugini (non Berg, 1923) | Alburnus chalcoides | 75107 |
| Alburnus chalcoides derjugini Berg, 1923 | Alburnus derjugini | 13696 |
| Chalcalburnus chalcoides iranicus Svetovidov, 1945 | Alburnus chalcoides | 13696 |
| Alburnus chalcoides istanbulensis (non Battalgil, 1941) | Alburnus chalcoides | 78144 |
| Alburnus chalcoides istanbulensis Battalgil, 1941 | Alburnus istanbulensis | 78144 |
| Chalcalburnus chalcoides macedonicus Stephanidis, 1971 | Alburnus chalcoides | 75107 |
| Chalcalburnus chalcoides macedonicus Stephanidis, 1971 | Alburnus volviticus | 75107 |
| Chalcalburnus chalcoides mandrensis (non Drensky, 1943) | Alburnus chalcoides | 59043 |
| Chalcalburnus chalcoides mandrensis Drensky, 1943 | Alburnus mandrensis | 81932 |
| Alburnus chalcoides mentoides longicephala Tseeb, 1930 | Alburnus chalcoides | 13696 |
| Alburnus chalcoides nicaeensis (non Battalgil, 1941) | Alburnus chalcoides | 75107 |
| Alburnus chalcoides nicaeensis Battalgil, 1941 | Alburnus nicaeensis | 13696 |
| Alburnus chalcoides sapancae Battalgil, 1941 | Alburnus chalcoides | 13696 |
| Chalcalburnus chalcoides schischkovi (non Drensky, 1943) | Alburnus chalcoides | 59043 |
| Chalcalburnus chalcoides schischkovi Drensky, 1943 | Alburnus schischkovi | 81932 |
| Hybopsis chalybaeus Cope, 1867 | Notropis chalybaeus | 12965 |
| Notropis chalybaeus abbotti Fowler, 1904 | Notropis chalybaeus | 33021 |
| Squalius chalybeius Heckel, 1852 | Leuciscus leuciscus | 13696 |
| Notropis chamberlaini Evermann, 1898 | Notropis shumardi | 33021 |
| Falcula chapalae (non Jordan & Snyder, 1899) | Yuriria alta | 52299 |
| Falcula chapalae Jordan & Snyder, 1899 | Yuriria chapalae | 54621 |
| Alburnus charusini Herzenstein, 1889 | Alburnus alburnus | 33550 |
| Luxilus chickasavensis Hay, 1881 | Cyprinella venusta | 33021 |
| Notropis chihuahua Woolman, 1892 | Miniellus chihuahua | 5723 |
| Hybopsis chiliticus Cope, 1870 | Notropis chiliticus | 12965 |
| Codoma chloristia Jordan & Brayton, 1878 | Cyprinella chloristia | 12965 |
| Hybopsis chlorocephalus Cope, 1870 | Notropis chlorocephalus | 12965 |
| Hybopsis chrosomus Jordan, 1877 | Notropis chrosomus | 12965 |
| Dionda chrysitis Girard, 1856 | Dionda episcopa | 33021 |
| Luxilus chrysocephalus Rafinesque, 1820 | Luxilus chrysocephalus | 86798 |
| Agosia chrysogaster Girard, 1856 | Agosia chrysogaster | 86798 |
| Cyprinus chrysoprasius Pallas, 1814 | Phoxinus phoxinus | 13696 |
| Squalius chuanchicus Kessler, 1876 | Leuciscus chuanchicus | 33783 |
| Cyprinus chub Bonnaterre, 1788 | Squalius cephalus | 13696 |
| Leuciscus chub pictava De la Pylaie, 1835 | Squalius cephalus | 13696 |
| Hybognathus churchilli Hildebrand, 1932 | Hybognathus placitus | 33021 |
| Leuciscus cii (non Richardson, 1857) | Squalius cephalus | 57755 |
| Leuciscus cii Richardson, 1857 | Squalius cii | 57755 |
| Leucos cisalpinus Heckel, 1843 | Leucos aula | 13696 |
| Leucos cisalpinus Heckel, 1851 | Leucos aula | 13696 |
| Pogonichthys ciscoides Hopkirk, 1974 | Pogonichthys ciscoides | 3814 |
| Squalius clathratus Blanchard, 1866 | Squalius cephalus | 13696 |
| Phoxinus clevelandi Eigenmann & Eigenmann, 1889 | Richardsonius egregius | 33021 |
| Cyprinus cleveza Pallas, 1814 | Ballerus sapa | 13696 |
| Cyprinus clupeoides Pallas, 1776 | Alburnus chalcoides | 13696 |
| Alburnoides coadi Mousavi-Sabet, Vatandoust & Doadrio, 2015 | Alburnoides coadi | 106248 |
| Tiaroga cobitis Girard, 1856 | Rhinichthys cobitis | 52299 |
| Hypsilepis coccogenis Cope, 1868 | Luxilus coccogenis | 26282 |
| Cheonda coerulea Girard, 1856 | Gila coerulea | 12965 |
| Chondrostoma colchicum Derjugin, 1899 | Chondrostoma colchicum | 27763 |
| Chondrostoma colchicum kubanicum Berg, 1914 | Chondrostoma kubanicum | 27763 |
| Chondrostoma colchicum var. tschorochica Kamensky, 1901 | Chondrostoma colchicum | 33021 |
| Rutilus columbianus Snyder, 1908 | Siphateles bicolor | 33021 |
| Leuciscus comes Costa, 1838 | Telestes comes | 88116 |
| Pogonichthys communis Girard, 1856 | Platygobio gracilis | 1998 |
| Moniana complanata Girard, 1856 | Cyprinella lutrensis | 33021 |
| Lavinia compressa Ayres, 1854 | Lavinia exilicauda | 33021 |
| Cyprinus compressus Hollberg, 1822 | Scardinius erythrophthalmus | 13696 |
| Rutilus compressus Rafinesque, 1820 | Luxilus cornutus | 33021 |
| Hyborhynchus confertus Girard, 1856 | Pimephales promelas | 33021 |
| Lavinia conformis Baird & Girard, 1854 | Gila crassicauda | 33021 |
| Gila conocephala Baird & Girard, 1854 | Mylopharodon conocephalus | 12965 |
| Gila conspersa Garman, 1881 | Gila conspersa | 31780 |
| Notropis cooglei Hildebrand & Towers, 1928 | Cyprinella venusta | 33021 |
| Squalius copei Jordan & Gilbert, 1881 | Lepidomeda copei | 95876 |
| Leuciscus copii Günther, 1868 | Notropis atherinoides | 1998 |
| Leuciscus cordilla Valenciennes, 1844 | Alburnus albidus | 13696 |
| Moapa coriacea Hubbs & Miller, 1948 | Gila coriacea | 86798 |
| Cyprinus cornutus Mitchill, 1817 | Luxilus cornutus | 12965 |
| Hypsilepis cornutus cerasinus Cope, 1868 | Luxilus cerasinus | 12965 |
| Hypsilepis cornutus cyaneus Cope, 1868 | Luxilus cornutus | 33021 |
| Notropis cornutus isolepis Hubbs & Brown, 1927 | Luxilus chrysocephalus | 56787 |
| Cyprinus corporalis Mitchill, 1817 | Semotilus corporalis | 86870 |
| Leuciscus costatus Fowler, 1899 | Rhynchocypris oxycephala | 33783 |
| Moniana couchi Girard, 1856 | Cyprinella lutrensis | 33021 |
| Hybopsis crameri Snyder, 1908 | Oregonichthys crameri | 26282 |
| Tigoma crassa Girard, 1856 | Gila crassicauda | 33021 |
| Lavinia crassicauda Baird & Girard, 1854 | Gila crassicauda | 12965 |
| Phenacobius crassilabrum Minckley & Craddock, 1962 | Phenacobius crassilabrum | 86798 |
| Acanthorutilus crassus Ladiges, 1960 | Pseudophoxinus crassus | 33550 |
| Phoxinellus croaticus Steindachner, 1866 | Telestes croaticus | 59043 |
| Scardinius crocophthalmus Walecki, 1863 | Scardinius erythrophthalmus | 13696 |
| Phoxinus crucifer Gratzianov, 1907 | Rhynchocypris percnura | 57778 |
| Squalius cruoreus Jordan & Gilbert, 1881 | Gila atraria | 33021 |
| Cyprinus crysoleucas Mitchill, 1814 | Notemigonus crysoleucas | 12965 |
| Phoxinus csikii Hankó, 1922 | Phoxinus phoxinus | 13696 |
| Cyprinus cultratus Linnaeus, 1758 | Pelecus cultratus | 13696 |
| Phoxinus cumberlandensis Starnes & Starnes, 1978 | Chrosomus cumberlandensis | 3814 |
| Ceratichthys cumingii Günther, 1868 | Notropis cumingii | 54621 |
| Notropis cummingsae Myers, 1925 | Pteronotropis cummingsae | 5723 |
| Notropis cummingsae collis Hubbs & Raney, 1951 | Pteronotropis cummingsae | 33021 |
| Acanthobrama cupida Heckel, 1843 | Acanthobrama marmid | 33550 |
| Lythrurus cyanocephalus Copeland, 1877 | Lythrurus umbratilis | 110348 |
| Ceratichthys cyclotis Cope, 1865 | Nocomis biguttatus | 33021 |
| Gila cypha Miller, 1946 | Gila cypha | 86798 |
| Chondrostoma cyri Kessler, 1877 | Chondrostoma cyri | 27763 |
| Chondrostoma cyri orientalis Bianco & Bănărescu, 1982 | Chondrostoma orientale | 27763 |
| Phoxinus czekanowskii Dybowski, 1869 | Rhynchocypris czekanowskii | 33783 |
| Phoxinus czekanowskii czerskii Berg, 1912 | Rhynchocypris czekanowskii | 82587 |
| Phoxinus czekanowskii ignatowi Berg, 1907 | Rhynchocypris czekanowskii | 82587 |
| Phoxinus czekanowskii posnaniensis Berg, 1932 | Rhynchocypris percnura | 13696 |
| Phoxinus czekanowskii sedelnikowi (non Berg, 1908) | Phoxinus phoxinus | 13696 |
| Phoxinus czekanowskii sedelnikowi Berg, 1908 | Phoxinus ujmonensis | 57778 |
| Phoxinus czekanowskii suifunensis Berg, 1932 | Rhynchocypris oxycephala | 82587 |
| Owsianka czernayi Dybowski, 1862 | Leucaspius delineatus | 13696 |
| Telestes dabar Bogutskaya, Zupančič, Bogut & Naseka, 2012 | Telestes dabar | 89938 |
| Chrosomus dakotensis Evermann & Cox, 1896 | Chrosomus eos | 1998 |
| Phoxinellus dalmaticus Zupančič & Bogutskaya, 2000 | Phoxinellus dalmaticus | 50603 |
| Squalius danilewskii Kessler, 1877 | Leuciscus danilewskii | 1441 |
| Rhinichthys deaconi Miller, 1984 | Rhinichthys deaconi | 86798 |
| Leuciscus decipiens Agassiz, 1835 | Rutilus rutilus | 13696 |
| Moniana deliciosa Girard, 1856 | Notropis texanus | 33021 |
| Squalius delineatus Heckel, 1843 | Leucaspius delineatus | 13696 |
| Leucaspius delineatus caucasicus Berg, 1949 | Leucaspius delineatus | 13696 |
| Leucaspius delineatus dimorphus Gratzianov, 1907 | Leucaspius delineatus | 13696 |
| Leucaspius delineatus dimorphus Ruzsky, 1914 | Leucaspius delineatus | 13696 |
| Phoxinus dementjevi Turdakov & Piskarev, 1954 | Rhynchocypris dementjevi | 27116 |
| Alburnus demiri Özuluğ & Freyhof, 2008 | Alburnus demiri | 76902 |
| Scardinius dergle Heckel & Kner, 1858 | Scardinius dergle | 59043 |
| Scardinius dergle (non Heckel & Kner, 1858) | Scardinius erythrophthalmus | 59043 |
| Alburnoides devolli Bogutskaya, Zupančič & Naseka, 2010 | Alburnoides devolli | 85842 |
| Dionda diaboli Hubbs & Brown, 1957 | Dionda diaboli | 86798 |
| Dionda dichroma Hubbs & Miller, 1977 | Tampichthys dichroma | 80389 |
| Alburnus dilectus Girard, 1856 | Notropis atherinoides | 33021 |
| Leucus dimidiatus Cope, 1883 | Siphateles bicolor | 33021 |
| Minnilus dinemus Rafinesque, 1820 | Notropis atherinoides | 93826 |
| Semotilus diplemia Rafinesque, 1820 | Chrosomus erythrogaster | 81932 |
| Leucosomus dissimilis Girard, 1856 | Couesius plumbeus | 33021 |
| Luxilus dissimilis Kirtland, 1840 | Erimystax dissimilis | 12965 |
| Hybopsis dissimilis harryi Hubbs & Crowe, 1956 | Erimystax harryi | 50838 |
| Gila ditaenia Miller, 1945 | Gila ditaenia | 86798 |
| Cyprinus dobula Linnaeus, 1758 | Leuciscus leuciscus | 13696 |
| Leuciscus dolabratus Valenciennes, 1844 | Alburnus alburnus | 10013 |
| Protoporus domninus Cope, 1872 | Gila atraria | 33021 |
| Alburnus doriae De Filippi, 1865 | Alburnus doriae | 39257 |
| Alburnus doriae (non De Filippi, 1865) | Squalius lepidus | 33021 |
| Hybopsis dorsalis Agassiz, 1854 | Ericymba dorsalis | 131297 |
| Semotilus dorsalis Rafinesque, 1820 | Semotilus atromaculatus | 33021 |
| Chondrostoma dremaei Blanchard, 1866 | Parachondrostoma toxostoma | 13696 |
| Phoxinellus drusensis Pellegrin, 1933 | Pseudophoxinus drusensis | 11028 |
| Oreoleuciscus dsapchynensis Warpachowski, 1889 | Oreoleuciscus dsapchynensis | 57778 |
| Oreoleuciscus dsapchynensis (non Warpachowski, 1889) | Oreoleuciscus potanini | 57778 |
| Aturius dufourii Dubalen, 1878 | Leuciscus burdigalensis | 13696 |
| Algansea dugesi Bean, 1892 | Algansea tincella | 33021 |
| Argyreus dulcis Girard, 1856 | Rhinichthys cataractae | |
| Phoxinus dybowskii Lorec & Wolski, 1910 | Rhynchocypris percnura | 13696 |
| Leuciscus dzungaricus Paepke & Koch, 1998 | Leuciscus dzungaricus | 57778 |
| Alburnoides economoui Barbieri, Vukić, Šanda & Zogaris, 2017 | Alburnoides economoui | 116746 |
| Notropis edwardraneyi Suttkus & Clemmer, 1968 | Notropis edwardraneyi | 5723 |
| Nocomis effusus Lachner & Jenkins, 1967 | Nocomis effusus | 86798 |
| Tigoma egregia Girard, 1858 | Richardsonius egregius | 12965 |
| Phoxinellus egridiri Karaman, 1972 | Pseudophoxinus egridiri | 33550 |
| Alburnus eichwaldii (non De Filippi, 1863) | Alburnoides bipunctatus | 82592 |
| Alburnus eichwaldii De Filippi, 1863 | Alburnoides eichwaldii | 13696 |
| Evarra eigenmanni Woolman, 1894 | Evarra eigenmanni | 52299 |
| Squalius elatus Bonaparte, 1841 | Leucos aula | 13696 |
| Gila elegans Baird & Girard, 1853 | Gila elegans | 86798 |
| Pseudophoxinus elizavetae Bogutskaya, Küçük & Atalay, 2006 | Pseudophoxinus elizavetae | 78620 |
| Abramis elongatus Valenciennes, 1844 | Vimba elongata | 13696 |
| Abramis elongatus (non Valenciennes, 1844) | Vimba vimba | 13696 |
| Luxilus elongatus Kirtland, 1840 | Clinostomus elongatus | 12965 |
| Abramis elongatus asianus Steindachner, 1897 | Vimba melanops | 13696 |
| Opsopoeodus emiliae Hay, 1881 | Opsopoeodus emiliae | 86798 |
| Notropis emiliae peninsularis Gilbert & Bailey, 1972 | Opsopoeodus emiliae | 86798 |
| Alburnoides emineae Turan, Kaya, Ekmekçi & Doğan, 2014 | Alburnoides emineae | 94737 |
| Gila emoryi Baird & Girard, 1853 | Gila elegans | 33021 |
| Chrosomus eos Cope, 1861 | Chrosomus eos | 82741 |
| Paraphoxinus epiroticus Steindachner, 1895 | Pelasgus epiroticus | 13696 |
| Paraphoxinus epiroticus prespensis Karaman, 1924 | Pelasgus prespensis | 13696 |
| Dionda episcopa Girard, 1856 | Dionda episcopa | 86798 |
| Gila eremica DeMarais, 1991 | Gila eremica | 39604 |
| Dionda erimyzonops Hubbs & Miller, 1974 | Tampichthys erimyzonops | 80389 |
| Luxilus erythrogaster Rafinesque, 1820 | Chrosomus erythrogaster | 12965 |
| Cyprinus erythrophthalmus Linnaeus, 1758 | Scardinius erythrophthalmus | 13696 |
| Rutilus erythrophthalmus Zerunian, 1982 | Leucos aula | 13696 |
| Scardinius erythrophthalmus achrus Stephanidis, 1950 | Scardinius erythrophthalmus | 13696 |
| Scardinius erythrophthalmus elmaliensis Bogutskaya, 1997 | Scardinius elmaliensis | 58462 |
| Scardinius erythrophthalmus rutiloides Vladykov, 1931 | Scardinius erythrophthalmus | 13696 |
| Scardinius erythrophthalmus var. dojranensis Karan, 1924 | Scardinius erythrophthalmus | 13696 |
| Cyprinus erythrops Pallas, 1814 | Scardinius erythrophthalmus | 13696 |
| Abramis erythropterus Valenciennes, 1844 | Blicca bjoerkna | 13696 |
| Aspius erytrostomus Kessler, 1877 | Leuciscus aspius | 13696 |
| Alburnus escherichii Steindachner, 1897 | Alburnus escherichii | 33550 |
| Petroleuciscus esfahani Coad & Bogutskaya, 2010 | Alburnus doriae | 84539 |
| Chondrostoma esmaeilii Eagderi, Jouladeh-Roudbar, Birecikligil, Çiçek & Coad, 2017 | Chondrostoma esmaeilii | 116747 |
| Aspius esocinus Kessler, 1874 | Aspiolucius esocinus | 1830 |
| Gila estor Jordan & Brayton, 1876 | Clinostomus funduloides | 33021 |
| Macrhybopsis etnieri Gilbert & Mayden, 2017 | Macrhybopsis etnieri | 116539 |
| Hudsonius euryopa Bean, 1880 | Notropis hudsonius | 33021 |
| Photogenis eurystomus Jordan, 1877 | Cyprinella eurystoma | 81932 |
| Notropis euryzonus Suttkus, 1955 | Pteronotropis euryzonus | 3814 |
| Hybognathus evansi Girard, 1856 | Hybognathus placitus | 33021 |
| Rhinichthys evermanni Snyder, 1908 | Rhinichthys evermanni | 86798 |
| Pseudophoxinus evliyae Freyhof & Özuluğ, 2010 | Pseudophoxinus evliyae | 83419 |
| Lavinia exilicauda Baird & Girard, 1854 | Lavinia exilicauda | 86798 |
| Lavinia exilicauda chi Hopkirk, 1974 | Lavinia exilicauda | 33021 |
| Alburnus fabraei Blanchard, 1866 | Alburnus alburnus | 13696 |
| Phoxinellus fahirae Ladiges, 1960 | Chondrostoma fahirae | 83419 |
| Pseudophoxinus fahrettini Freyhof & Özuluğ, 2010 | Pseudophoxinus fahrettini | 83422 |
| Agosia falcata Eigenmann & Eigenmann, 1893 | Rhinichthys falcatus | 1998 |
| Alburnoides fangfangae Bogutskaya, Zupančič & Naseka, 2010 | Alburnoides fangfangae | 85842 |
| Cyprinus farenus Linnaeus, 1758 | Ballerus ballerus | 13696 |
| Leuciscus farnumi Fowler, 1899 | Leuciscus waleckii | 33021 |
| Aspius fasciatus (non Nordmann, 1840) | Alburnoides bipunctatus | 82592 |
| Aspius fasciatus Nordmann, 1840 | Alburnoides fasciatus | 82592 |
| Pimephales fasciatus Girard, 1856 | Pimephales promelas | 33021 |
| Leuciscus fellowesii (non Günther, 1868) | Squalius cephalus | 84537 |
| Leuciscus fellowesii Günther, 1868 | Squalius fellowesii | 95876 |
| Spinicephalus fibulatus Lesueur, 1896 | Pimephales notatus | 33021 |
| Alburnus filippii Kessler, 1877 | Alburnus filippii | 1441 |
| Pseudophoxinus firati Bogutskaya, Küçük & Atalay, 2006 | Pseudophoxinus firati | 78620 |
| Cyprinus fischeri Valenciennes, 1844 | Leucaspius delineatus | 13696 |
| Leucaspius fischeri Sabanyeev, 1872 | Rhynchocypris percnura | 13696 |
| Phoxinus flammeus Jordan & Gilbert, 1878 | Hemitremia flammea | 12965 |
| Algoma fluviatilis Girard, 1856 | Hybognathus amarus | 33021 |
| Hudsonius fluviatilis Girard, 1856 | Notropis hudsonius | 33021 |
| Cyprinella forbesi Jordan, 1878 | Cyprinella lutrensis | 33021 |
| Nototropis forlonensis Meek, 1904 | Cyprinella lutrensis | 33021 |
| Algansea formosa Girard, 1856 | Siphateles bicolor | 95876 |
| Moniana formosa Girard, 1856 | Cyprinella formosa | 42680 |
| Campostoma formosulum Girard, 1856 | Campostoma pullum | 33021 |
| Alburnus fracchia Bonaparte, 1845 | Alburnus alburnus | 13696 |
| Alburnus fracchia Heckel & Kner, 1858 | Alburnus alburnus | 13696 |
| Mylocheilus fraterculus Girard, 1856 | Mylocheilus caurinus | 33021 |
| Hybopsis fretensis Cope, 1867 | Cyprinella spiloptera | 33021 |
| Alburnoides freyhofi Turan, Kaya, Bayçelebi, Bektaş & Ekmekçi, 2017 | Alburnoides freyhofi | 115650 |
| Moniana frigida Girard, 1856 | Cyprinella lutrensis | 33021 |
| Leuciscus frigidus Valenciennes, 1844 | Squalius cephalus | 13696 |
| Leuciscus frisii Nordmann, 1840 | Rutilus frisii | 13696 |
| Leuciscus frisii caspius Lönnberg, 1900 | Rutilus frisii | 13696 |
| Leuciscus frisii kutum (non Kamensky, 1901) | Rutilus frisii | 58342 |
| Leuciscus frisii kutum Kamensky, 1901 | Rutilus kutum | 58342 |
| Rutilus frisii velecensis Chichkoff, 1932 | Rutilus frisii | 13696 |
| Abramis frivaldszkyi Heckel, 1843 | Vimba vimba | 13696 |
| Leuciscus frontalis Agassiz, 1850 | Luxilus cornutus | 33021 |
| Leuciscus fucini Bonaparte, 1838 | Sarmarutilus rubilio | 13696 |
| Meda fulgida Girard, 1856 | Meda fulgida | 86798 |
| Cyprinus fulvus Vallot, 1837 | Rutilus rutilus | 13696 |
| Notropis fumeus Evermann, 1892 | Lythrurus fumeus | 3814 |
| Clinostomus funduloides Girard, 1856 | Clinostomus funduloides | 86798 |
| Cyprinus fuscus Vallot, 1837 | Scardinius erythrophthalmus | 13696 |
| Leuciscus gaderanus Günther, 1899 | Leuciscus gaderanus | 39702 |
| Hypsilepis galacturus Cope, 1868 | Cyprinella galactura | 12965 |
| Cyprinus galian Gmelin, 1789 | Phoxinus phoxinus | 13696 |
| Squalius galtiae Cope, 1883 | Richardsonius egregius | 33021 |
| Leuciscus gardoneus Valenciennes, 1844 | Notemigonus crysoleucas | 33021 |
| Notropis garmani Jordan, 1885 | Cyprinella garmani | 27116 |
| Achondrostoma garzonorum Doadrio, Casal-López & Perea, 2023 | Achondrostoma garzonorum | 128766 |
| Abramis gehini Blanchard, 1866 | Abramis brama | 13696 |
| Gobio gelidus Girard, 1856 | Macrhybopsis gelida | 12965 |
| Leuciscus genei Bonaparte, 1839 | Protochondrostoma genei | 13696 |
| Chondrostoma genei albicans Gatti, 1896 | Protochondrostoma genei | 13696 |
| Paraphoxinus ghetaldii Steindachner, 1882 | Delminichthys ghetaldii | 13696 |
| Leucaspius ghigii Gianferrari, 1927 | Squalius ghigii | 13373 |
| Gila gibbosa Baird & Girard, 1854 | Gila intermedia | 33021 |
| Moniana gibbosa Girard, 1856 | Cyprinella lutrensis | 33021 |
| Cyprinus gibbosus Pallas, 1814 | Blicca bjoerkna | 13696 |
| Leuciscus gibbosus Ayres, 1854 | Gila crassicauda | 33021 |
| Notropis gibbsi Howell & Williams, 1971 | Cyprinella gibbsi | 3814 |
| Cyprinus gieben Wulff, 1765 | Blicca bjoerkna | 13696 |
| Notropis gilberti Jordan & Meek, 1885 | Ericymba dorsalis | 33021 |
| Leuciscus gilli Evermann, 1892 | Richardsonius balteatus | 33021 |
| Notropis girardi Hubbs & Ortenburger, 1929 | Notropis girardi | 5723 |
| Alburnoides gmelini Bogutskaya & Coad, 2009 | Alburnoides gmelini | 82592 |
| Campostoma gobioninum Cope, 1865 | Campostoma pullum | 33021 |
| Alburnus gracilis Bonaparte, 1845 | Alburnus alburnus | 13696 |
| Cyprinus gracilis Richardson, 1836 | Platygobio gracilis | 1998 |
| Gila gracilis Baird & Girard, 1853 | Gila robusta | 33021 |
| Leuciscus gracilis Agassiz, 1850 | Luxilus cornutus | 33021 |
| Leuciscus gracilis Ayres, 1854 | Ptychocheilus grandis | 33021 |
| Moniana gracilis Girard, 1856 | Cyprinella rutila | 33021 |
| Oreoleuciscus gracilis Warpachowski, 1889 | Oreoleuciscus potanini | 33021 |
| Ptychocheilus gracilis Agassiz & Pickering, 1855 | Ptychocheilus oregonensis | 33021 |
| Tigoma gracilis Girard, 1856 | Gila pandora | 33021 |
| Scardinius graecus Stephanidis, 1937 | Scardinius graecus | 59043 |
| Gila grahamii Baird & Girard, 1853 | Gila robusta | 27116 |
| Cyprinus graining Walbaum, 1792 | Leuciscus leuciscus | 13696 |
| Photogenis grandipinnis Jordan, 1877 | Pteronotropis grandipinnis | 40813 |
| Gila grandis Ayres, 1854 | Ptychocheilus grandis | 12965 |
| Notropis grandis Domínguez-Domínguez, Pérez-Rodríguez, Escalera-Vázquez & Doadrio, 2009 | Notropis grandis | 84762 |
| Notropis greenei Hubbs & Ortenburger, 1929 | Miniellus greenei | 5723 |
| Couesius greeni Jordan, 1893 | Couesius plumbeus | 1998 |
| Dionda grisea Girard, 1856 | Campostoma pullum | 33021 |
| Cyprinus grislagine Linnaeus, 1758 | Leuciscus leuciscus | 13696 |
| Cyprinus gronovii Bloch & Schneider, 1801 | Alburnoides bipunctatus | 13696 |
| Phoxinus grumi Berg, 1907 | Phoxinus grumi | 33783 |
| Phoxinellus guichenoti Pellegrin, 1920 | Pseudophoxinus callensis | 2801 |
| Gila gula Cope, 1875 | Gila pandora | 33021 |
| Pogonichthys gulonellus Cope, 1865 | Platygobio gracilis | 109404 |
| Cyprinella gunnisoni Girard, 1856 | Cyprinella lutrensis | 33021 |
| Acanthobrama hadiyahensis Coad, Alkahem & Behnke, 1983 | Acanthobrama hadiyahensis | 97573 |
| Cyprinus haematopterus Rafinesque, 1820 | Luxilus cornutus | 33021 |
| Hybopsis haematurus Cope, 1867 | Pimephales notatus | 33021 |
| Leuciscus hakonensis Günther, 1877 | Pseudaspius hakonensis | 50838 |
| Tribolodon hakuensis ezoe Okada & Ikeda, 1937 | Pseudaspius sachalinensis | 58051 |
| Semotilus hammondii Abbott, 1860 | Semotilus atromaculatus | 33021 |
| Acanthorutilus handlirschi Pietschmann, 1933 | Pseudophoxinus handlirschi | 33550 |
| Hybognathus hankinsoni Hubbs, 1929 | Hybognathus hankinsoni | 86798 |
| Lavinia harengus Girard, 1856 | Lavinia exilicauda | 33021 |
| Ptychocheilus harfordi Jordan & Gilbert, 1881 | Ptychocheilus grandis | 33021 |
| Notropis harperi Fowler, 1941 | Pteronotropis harperi | 5723 |
| Hybopsis harperi subterranea Hubbs & Crowe, 1956 | Pteronotropis harperi | 33021 |
| Pseudophoxinus hasani Krupp, 1992 | Pseudophoxinus hasani | 83419 |
| Hybognathus hayi Jordan, 1885 | Hybognathus hayi | 86798 |
| Alburnus hebes Heckel, 1843 | Alburnus sellal | 33550 |
| Alburnus heckeli Battalgil, 1943 | Alburnus heckeli | 33550 |
| Aspius heckelii (non Fitzinger, 1832) | Alburnus chalcoides | 13696 |
| Aspius heckelii Fitzinger, 1832 | Alburnus mento | 75106 |
| Leuciscus heckelii Nordmann, 1840 | Rutilus heckelii | 13696 |
| Leuciscus heckelii (non Nordmann, 1840) | Rutilus rutilus | 58342 |
| Leuciscus heegeri Bonaparte, 1839 | Scardinius scardafa | 13696 |
| Rutilus heegeri Agassiz, 1835 | Scardinius scardafa | 13696 |
| Cyprinus hemiplus Rafinesque, 1817 | Notemigonus crysoleucas | 33021 |
| Leuciscus henle Bonaparte, 1841 | Leucos aula | 13696 |
| Leucos henlei Bonaparte, 1846 | Sarmarutilus rubilio | 33021 |
| Oreoleuciscus herzensteini Warpachowski, 1889 | Oreoleuciscus potanini | 33021 |
| Scardinius hesperidicus (non Bonaparte, 1845) | Scardinius erythrophthalmus | 59043 |
| Scardinius hesperidicus Bonaparte, 1845 | Scardinius hesperidicus | 59043 |
| Leuciscus heterandrius Battalgil, 1940 | Petroleuciscus borysthenicus | 13696 |
| Alburnops heterodon Cope, 1865 | Miniellus heterodon | 12965 |
| Notropis heterodon richardsoni Hubbs & Green, 1926 | Notropis texanus | 33021 |
| Notropis heterolepis Eigenmann & Eigenmann, 1893 | Notropis heterolepis | 5723 |
| Notropis heterolepis regalis Hubbs & Lagler, 1949 | Notropis heterolepis | 33021 |
| Campostoma hippops Cope, 1865 | Campostoma pullum | 33021 |
| Phoxinus hispanicus Steindachner, 1866 | Anaecypris hispanica | 13696 |
| Pseudophoxinus hittitorum Freyhof & Özuluğ, 2010 | Pseudophoxinus hittitorum | 85560 |
| Alburnus hohenackeri Kessler, 1877 | Alburnus hohenackeri | 51472 |
| Alburnoides holciki Coad & Bogutskaya, 2012 | Alburnoides holciki | 91777 |
| Capoeta holmwoodii Boulenger, 1896 | Chondrostoma holmwoodii | 26282 |
| Chondrostoma holmwoodii meandrensis Elvira, 1987 | Chondrostoma meandrense | 27763 |
| Notropis horatii Cockerell, 1911 | Ericymba dorsalis | 33021 |
| Notropis hubbsi Bailey & Robison, 1978 | Pteronotropis hubbsi | 52299 |
| Parexoglossum hubbsi Trautman, 1931 | Exoglossum laurae | 33021 |
| Clupea hudsonia Clinton, 1824 | Notropis hudsonius | 12965 |
| Oreoleuciscus humilis Warpachowski, 1889 | Oreoleuciscus humilis | 26334 |
| Oreoleuciscus humilis phoxinoides Warpachowski, 1889 | Oreoleuciscus humilis | 33021 |
| Squalius hyalope Cope, 1865 | Semotilus corporalis | 33021 |
| Clinostomus hydrophlox Cope, 1872 | Richardsonius balteatus | 80360 |
| Nocomis hyostomus Gilbert, 1884 | Macrhybopsis hyostoma | 50838 |
| Leuciscus hypselopterus Günther, 1868 | Pteronotropis hypselopterus | 12965 |
| Notropis hypsilepis Suttkus & Raney, 1955 | Notropis hypsilepis | 5723 |
| Ceratichthys hypsinotus Cope, 1870 | Hybopsis hypsinotus | 12965 |
| Alburnus iblioides Kessler, 1872 | Leuciscus aspius | 13696 |
| Alburnus iblis Heckel, 1846-49 | Alburnus mossulensis | 33021 |
| Cyprinus idbarus Linnaeus, 1758 | Leuciscus idus | 13696 |
| Alburnoides idignensis Bogutskaya & Coad, 2009 | Alburnoides idignensis | 82592 |
| Cyprinus idus Linnaeus, 1758 | Leuciscus idus | 13696 |
| Leuciscus idus auratus Bade, 1901 | Leuciscus idus | 13696 |
| Leuciscus idus idus sibiricus Kirillov, 1958 | Leuciscus idus | 13696 |
| Leuciscus idus lapponicus Günther, 1868 | Leuciscus idus | 13696 |
| Alburnops illecebrosus Girard, 1856 | Notropis shumardi | 33021 |
| Squalius illyricus Heckel & Kner, 1858 | Squalius illyricus | 59043 |
| Notropis imeldae Cortés, 1968 | Notropis imeldae | 3881 |
| Pogonichthys inaequilobus Baird & Girard, 1854 | Pogonichthys macrolepidotus | 33021 |
| Leucosomus incrassatus Girard, 1856 | Semotilus atromaculatus | 33021 |
| Hybopsis insignis Hubbs & Crowe, 1956 | Erimystax insignis | 3814 |
| Blicca intermedia Fatio, 1882 | Blicca bjoerkna | 13696 |
| Tigoma intermedia Girard, 1856 | Gila intermedia | 26282 |
| Squalius intermedius Kessler, 1872 | Leuciscus lehmanni | 1441 |
| Notropis ipni Álvarez & Navarro, 1953 | Tampichthys ipni | 27116 |
| Leucaspius irideus Ladiges, 1960 | Ladigesocypris irideus | 89834 |
| Leucaspius irideus (non Ladiges, 1960) | Squalius ghigii | 89834 |
| Leucaspius irideus mermere Ladiges, 1960 | Ladigesocypris mermere | 58462 |
| Hypsilepis iris Cope, 1875 | Cyprinella lutrensis | 33021 |
| Leuciscus iris Valenciennes, 1844 | Semotilus atromaculatus | 33021 |
| Notemigonus ischanus Jordan, 1877 | Notemigonus crysoleucas | 33021 |
| Cyprinus isetensis Georgi, 1775 | Phoxinus phoxinus | 13696 |
| Phoxinus issykkulensis Berg, 1912 | Phoxinus issykkulensis | 1441 |
| Rutilus italicus Calderoni, 1981 | Sarmarutilus rubilio | 13696 |
| Chondrostoma jaculum De Filippi, 1844 | Protochondrostoma genei | 13696 |
| Alburnellus jaculus Cope, 1867 | Notropis atherinoides | 1998 |
| Cyprinus jaculus Jurine, 1825 | Rutilus rutilus | 13696 |
| Phoxinellus jadovensis Zupančič & Bogutskaya, 2002 | Delminichthys jadovensis | 59043 |
| Squalius janae Bogutskaya & Zupančič, 2010 | Squalius janae | 84537 |
| Lepidomeda jarrovii Cope, 1871 | Lepidomeda vittata | 33021 |
| Episema jejuna Forbes, 1878 | Notropis blennius | 33021 |
| Phoxinus jelskii Dybowski, 1869 | Rhynchocypris percnura | 13696 |
| Alburnellus jemezanus Cope, 1875 | Notropis jemezanus | 12965 |
| Cyprinus jeses Linnaeus, 1758 | Leuciscus idus | 13696 |
| Gila jordani Tanner, 1950 | Gila robusta | 27116 |
| Notropis jordanii Eigenmann & Eigenmann, 1893 | Notropis blennius | 80565 |
| Leuciscus jouyi Jordan & Snyder, 1901 | Phoxinus jouyi | 26282 |
| Moniana jugalis Cope, 1871 | Cyprinella lutrensis | 33021 |
| Leuciscus jurinii Dybowski, 1862 | Rutilus rutilus | 13696 |
| Oregonichthys kalawatseti Markle, Pearsons & Bills, 1991 | Oregonichthys kalawatseti | 39605 |
| Phoxinus karsticus Bianco & De Bonis, 2015 | Phoxinus karsticus | 105385 |
| Telestes karsticus Marčić & Mrakovčić, 2011 | Telestes karsticus | 87378 |
| Notropis keimi Fowler, 1909 | Ericymba dorsalis | 33021 |
| Notropis kendalli Evermann & Cockerell, 1909 | Notropis heterolepis | 33021 |
| Luxilus kentuckiensis Rafinesque, 1820 | Nocomis biguttatus | 33021 |
| Phoxinellus kervillei Pellegrin, 1911 | Pseudophoxinus kervillei | 13609 |
| Phoxinus ketmaieri Bianco & De Bonis, 2015 | Phoxinus ketmaieri | 105385 |
| Moroco keumkang Chyung, 1977 | Phoxinus keumkang | 12218 |
| Cyprinus kietaibeli Reisinger, 1830 | Squalius cephalus | 13696 |
| Chondrostoma kinzelbachi Krupp, 1985 | Chondrostoma kinzelbachi | 27763 |
| Cyprinus kleweza Güldenstädt, 1791 | Ballerus sapa | 33021 |
| Chondrostoma knerii Heckel, 1843 | Chondrostoma knerii | 59043 |
| Scardinius knezevici Bianco & Kottelat, 2005 | Scardinius knezevici | 55977 |
| Alburnoides kosswigi Turan, Kaya, Bayçelebi, Bektaş & Ekmekçi, 2017 | Alburnoides kosswigi | 115650 |
| Alburnus kosswigi Battalgil, 1941 | Alburnus escherichii | 33550 |
| Leuciscus kosswigi (non Karaman, 1972) | Squalius cephalus | 83299 |
| Leuciscus kosswigi Karaman, 1972 | Squalius kosswigi | 33550 |
| Alburnus kotschyi Steindachner, 1863 | Alburnus kotschyi | 58342 |
| Alburnus kotschyi (non Steindachner, 1863) | Alburnus orontis | 58342 |
| Squalius kottelati Turan, Yilmaz & Kaya, 2009 | Squalius kottelati | 83299 |
| Phoxinellus krbavensis Zupančič & Bogutskaya, 2002 | Delminichthys krbavensis | 59043 |
| Phoxinus kumgangensis Kim, 1980 | Phoxinus kumgangensis | 43552 |
| Alburnoides kurui Turan, Kaya, Bayçelebi, Bektaş & Ekmekçi, 2017 | Alburnoides kurui | 115650 |
| Leuciscus kurui Bogutskaya, 1995 | Petroleuciscus kurui | 13391 |
| Acanthobrama kuschakewitschi Kessler, 1872 | Capoetobrama kuschakewitschi | 1441 |
| Capoetobrama kuschakewitschi orientalis Nikolskii, 1934 | Capoetobrama kuschakewitschi | 97573 |
| Ceratichthys labrosus Cope, 1870 | Cyprinella labrosa | 12965 |
| Pseudophoxinus laconicus Kottelat & Barbieri, 2004 | Pelasgus laconicus | 52474 |
| Algansea lacustris Steindachner, 1895 | Algansea lacustris | 27639 |
| Cyprinus lacustris Pallas, 1814 | Rutilus rutilus | 13696 |
| Hemiplus lacustris Rafinesque, 1820 | Notemigonus crysoleucas | 33021 |
| Moniana laetabilis Girard, 1856 | Cyprinella lutrensis | 33021 |
| Phoxinus laevis Fitzinger, 1832 | Phoxinus phoxinus | 12965 |
| Phoxinus laevis balchaschana Kessler, 1879 | Phoxinus phoxinus | 13696 |
| Phoxinus laevis mikrosquamatus (non Kashchenko, 1899) | Phoxinus phoxinus | 13696 |
| Phoxinus laevis mikrosquamatus Kaschenko, 1899 | Phoxinus ujmonensis | 57778 |
| Phoxinus laevis ujmonensis (non Kashchenko, 1899) | Phoxinus phoxinus | 57778 |
| Phoxinus laevis ujmonensis Kaschenko, 1899 | Phoxinus ujmonensis | 57778 |
| Phoxinus laevis var. punctatus Benecke, 1881 | Rhynchocypris percnura | 13696 |
| Phoxinus lagowskii Dybowski, 1869 | Rhynchocypris lagowskii | 82587 |
| Phoxinus lagowskii chorensis Rendahl, 1928 | Rhynchocypris lagowskii | 33783 |
| Squalius laietanus Doadrio, Kottelat & de Sostoa, 2007 | Squalius laietanus | 75108 |
| Cyprinus lancastriensis Shaw, 1804 | Leuciscus leuciscus | 13696 |
| Cyprinus lanceolatus (non Bloch & Schneider, 1801) | Alburnus alburnus | 55858 |
| Cyprinus lanceolatus Bloch & Schneider, 1801 | Alburnus arborella | 55858 |
| Leuciscus lapacinus Stefani, Serra, Loffredo & Fossa, 1987 | Squalius cephalus | 13696 |
| Rhinichthys lariversi Lugaski, 1972 | Rhinichthys osculus | 81932 |
| Leuciscus lascha Costa, 1838 | Sarmarutilus rubilio | 13696 |
| Cyprinus laskyr Güldenstädt, 1814 | Blicca bjoerkna | 13696 |
| Mylocheilus lateralis Agassiz & Pickering, 1855 | Mylocheilus caurinus | 1998 |
| Richardsonius lateralis Girard, 1856 | Richardsonius balteatus | 1998 |
| Leuciscus latifrons Nilsson, 1855 | Squalius cephalus | 13696 |
| Alburnus latissimus Kamensky, 1901 | Alburnus chalcoides | 13696 |
| Cyprinus latus Gmelin, 1789 | Blicca bjoerkna | 13696 |
| Cyprinus latus Gronow, 1854 | Blicca bjoerkna | 33021 |
| Squalius latus Keyserling, 1861 | Leuciscus latus | 33021 |
| Parexoglossum laurae Hubbs, 1931 | Exoglossum laurae | 12965 |
| Leuciscus ledae Warpachowski, 1892 | Pseudaspius brandtii | 1441 |
| Notropis leedsi Fowler, 1942 | Cyprinella leedsi | 3814 |
| Leuciscus lehmanni Brandt, 1852 | Leuciscus lehmanni | 1441 |
| Leuciscus lemmingii Steindachner, 1866 | Iberochondrostoma lemmingii | 13696 |
| Squalius lemmoni Smith, 1884 | Gila intermedia | 33021 |
| Alburnus leobergi Freyhof & Kottelat, 2007 | Alburnus leobergi | 75106 |
| Moniana leonina Girard, 1856 | Cyprinella lutrensis | 33021 |
| Cyprinella lepida Girard, 1856 | Cyprinella lepida | 86798 |
| Alburnus lepidulus Girard, 1856 | Notropis atherinoides | 33021 |
| Squalius lepidus Heckel, 1843 | Squalius lepidus | 84537 |
| Leuciscus lepidus anatolicus Bogutskaya, 1997 | Squalius anatolicus | 33550 |
| Ceratichthys leptocephalus Girard, 1856 | Nocomis leptocephalus | 12965 |
| Cyprinus leptocephalus Pallas, 1776 | Pseudaspius leptocephalus | 13397 |
| Chondrostoma leptosoma Berg, 1914 | Chondrostoma oxyrhynchum | 93826 |
| Luxilus leptosomus Girard, 1856 | Notemigonus crysoleucas | 33021 |
| Squalius lepusculus Heckel, 1852 | Leuciscus leuciscus | 13696 |
| Notropis lermae Evermann & Goldsborough, 1902 | Aztecula sallaei | 33021 |
| Exoglossum lesurianum Rafinesque, 1818 | Exoglossum maxillingua | 33021 |
| Photogenis leuciodus Cope, 1868 | Notropis leuciodus | 12965 |
| Cyprinus leuciscus Linnaeus, 1758 | Leuciscus leuciscus | 13696 |
| Leuciscus leuciscus baicalensis kirgisorum Berg, 1912 | Leuciscus leuciscus | 13696 |
| Leuciscus leuciscus baicalensis teletzkensis Johansen, 1945 | Rutilus rutilus | |
| Squalius leuciscus elata Fatio, 1882 | Leuciscus leuciscus | 13696 |
| Squalius leuciscus elongata Fatio, 1882 | Leuciscus leuciscus | 13696 |
| Squalius leuciscus lateristriga Fatio, 1882 | Leuciscus leuciscus | 13696 |
| Leuciscus leuciscus roulei Bertin & Estève, 1948 | Leuciscus leuciscus | 13696 |
| Telestes leucoides De Filippi, 1863 | Petroleuciscus borysthenicus | 1441 |
| Photogenis leucops Cope, 1867 | Notropis photogenis | 33021 |
| Photogenis leucops engraulinus Cope, 1868 | Notropis photogenis | 33021 |
| Phoxinellus libani Lortet, 1883 | Pseudophoxinus libani | 81932 |
| Phoxinus likai Bianco & De Bonis, 2015 | Phoxinus likai | 105385 |
| Leuciscus lindbergi Zanin & Eremejev, 1934 | Leuciscus lindbergi | 1441 |
| Hybopsis lineapunctata Clemmer & Suttkus, 1971 | Hybopsis lineapunctata | 47138 |
| Tigoma lineata Girard, 1856 | Gila atraria | 33021 |
| Alburnus lineolatus Putnam, 1863 | Miniellus stramineus | 93382 |
| Alburnus linnei Malm, 1877 | Alburnus alburnus | 13696 |
| Aspius linnei Malm, 1877 | Leuciscus aspius | 13696 |
| Nototropis lirus Jordan, 1877 | Lythrurus lirus | 12965 |
| Acanthobrama lissneri Tortonese, 1952 | Acanthobrama lissneri | 11028 |
| Leuciscus lividus Heckel, 1843 | Rutilus rutilus | 13696 |
| Alburnops longirostris Hay, 1881 | Miniellus longirostris | 12965 |
| Alburnus longissimus Warpachowski, 1892 | Alburnus chalcoides | 13696 |
| Notropis louisae Fowler, 1940 | Notropis maculatus | 33021 |
| Notropis louisianae Evermann, 1898 | Notropis atherinoides | 33021 |
| Alburnus lucidus Heckel, 1843 | Alburnus alburnus | 13696 |
| Alburnus lucidus angustior Walecki, 1863 | Alburnus alburnus | 93382 |
| Alburnus lucidus colobocephala Fatio, 1882 | Alburnus alburnus | 13696 |
| Alburnus lucidus elata Fatio, 1882 | Alburnus alburnus | 13696 |
| Alburnus lucidus elongata Fatio, 1882 | Alburnus alburnus | 13696 |
| Leuciscus lucidus ilmenensis Warpachowski, 1886 | Alburnus alburnus | 13696 |
| Alburnus lucidus lacustris Heckel & Kner, 1858 | Alburnus alburnus | 13696 |
| Alburnus lucidus latior Walecki, 1863 | Alburnus alburnus | 93382 |
| Alburnus lucidus macropterus Kamensky, 1901 | Alburnus alburnus | 33021 |
| Alburnus lucidus oxycephala Fatio, 1882 | Alburnus alburnus | 13696 |
| Ptychocheilus lucius Girard, 1856 | Ptychocheilus lucius | 5723 |
| Leuciscus lucumonis Bianco, 1983 | Squalius lucumonis | 13696 |
| Cyprinella ludibunda Girard, 1856 | Miniellus stramineus | 83639 |
| Cyprinus lugdunensis Walbaum, 1792 | Squalius cephalus | 13696 |
| Cyprinella lugubris Girard, 1856 | Notropis rubellus | 33021 |
| Cyprinus lumaireul Schinz, 1840 | Phoxinus phoxinus | 105385 |
| Semotilus lumbee Snelson & Suttkus, 1978 | Semotilus lumbee | 86798 |
| Chondrostoma lusitanicum (non Collares-Pereira, 1980) | Iberochondrostoma almacai | 55426 |
| Chondrostoma lusitanicum Collares-Pereira, 1980 | Iberochondrostoma lusitanicum | 55426 |
| Hydrophlox lutipinnis Jordan & Brayton, 1878 | Notropis lutipinnis | 12965 |
| Leuciscus lutrensis Baird & Girard, 1853 | Cyprinella lutrensis | 10294 |
| Notropis lutrensis blairi Hubbs, 1940 | Cyprinella lutrensis | 33021 |
| Cyprinella luxiloides Girard, 1856 | Notropis amabilis | 33021 |
| Leuciscus macedonicus Steindachner, 1892 | Pachychilon macedonicum | 13696 |
| Semotilus macrocephalus Girard, 1856 | Semotilus atromaculatus | 33021 |
| Leuciscus macrolepidotus Steindachner, 1866 | Achondrostoma oligolepis | 55616 |
| Leuciscus macrolepidotus Ayres, 1854 | Pogonichthys macrolepidotus | 12965 |
| Scardinius macrophthalmus Heckel & Kner, 1858 | Scardinius erythrophthalmus | 13696 |
| Cyprinella macrostoma Girard, 1856 | Notropis amabilis | 33021 |
| Hemitremia maculata Hay, 1881 | Notropis maculatus | 12965 |
| Alburnus maculatus (non Kessler, 1859) | Alburnoides bipunctatus | 82592 |
| Alburnus maculatus Kessler, 1859 | Alburnoides maculatus | 82592 |
| Alburnus maculatus Keyserling, 1861 | Alburnus doriae | 116542 |
| Pimephales maculosus Girard, 1856 | Pimephales promelas | 33021 |
| Pararhodeus maeandri Ladiges, 1960 | Pseudophoxinus maeandri | 33550 |
| Acanthorutilus maeandricus Ladiges, 1960 | Pseudophoxinus maeandricus | 33550 |
| Alburnus magnificus Freyhof & Turan, 2019 | Alburnus magnificus | 119732 |
| Leuciscus majalis Agassiz, 1835 | Leuciscus leuciscus | 13696 |
| Ptychocheilus major Agassiz, 1855 | Ptychocheilus grandis | 33021 |
| Squalius malacitanus Doadrio & Carmona, 2006 | Squalius malacitanus | 72459 |
| Dionda mandibularis Contreras-Balderas & Verduzco-Martínez, 1977 | Tampichthys mandibularis | 80389 |
| Alburnoides manyasensis Turan, Ekmekçi, Kaya & Güçlü, 2013 | Alburnoides manyasensis | 91784 |
| Leucaspius marathonicus Vinciguerra, 1921 | Pelasgus marathonicus | 54621 |
| Leucaspius marathonicus (non Vinciguerra, 1921) | Pelasgus stymphalicus | 52474 |
| Clinostomus margarita Cope, 1867 | Margariscus margarita | 26282 |
| Notropis marhabatiensis Domínguez-Domínguez, Pérez-Rodríguez, Escalera-Vázquez & Doadrio, 2009 | Notropis marhabatiensis | 84762 |
| Acanthobrama marmid Heckel, 1843 | Acanthobrama marmid | 33550 |
| Acanthobrama marmid elata Berg, 1949 | Acanthobrama marmid | 33550 |
| Acanthobrama marmid orontis (non Berg, 1949) | Acanthobrama marmid | 97573 |
| Acanthobrama marmid orontis Berg, 1949 | Acanthobrama orontis | 33550 |
| Rhinichthys marmoratus Agassiz, 1850 | Rhinichthys cataractae | 1998 |
| Leuciscus marrochius Costa, 1838 | Scardinius scardafa | 13696 |
| Phoxinus marsilii Heckel, 1836 | Phoxinus phoxinus | 13696 |
| Alburnellus matutinus Cope, 1870 | Lythrurus matutinus | 54621 |
| Leuciscus maxillaris Valenciennes, 1844 | Alburnus mossulensis | 27116 |
| Cyprinus maxillingua Lesueur, 1817 | Exoglossum maxillingua | 12965 |
| Notropis mearnsi Snyder, 1915 | Cyprinella formosa | 42680 |
| Cyprinus meckel Hermann, 1804 | Blicca bjoerkna | 13696 |
| Abramis media Koch, 1840 | Abramis brama | 13696 |
| Hybopsis meeki Jordan & Evermann, 1896 | Macrhybopsis meeki | 12965 |
| Alburnus megacephalus Heckel, 1846-49 | Alburnus mossulensis | 33021 |
| Alburnus megalops Girard, 1856 | Notropis amabilis | 33021 |
| Cyprinus megalops Rafinesque, 1817 | Luxilus cornutus | 33021 |
| Trycherodon megalops Forbes, 1883 | Opsopoeodus emiliae | 33021 |
| Notropis megalops albeolus Jordan, 1889 | Luxilus albeolus | 80565 |
| Squalius mehdem Warpachowski, 1897 | Leuciscus leuciscus | 13696 |
| Pseudophoxinus mehmeti Ekmekçi, Atalay, Yoğurtçuoğlu, Turan & Küçük, 2015 | Pseudophoxinus mehmeti | 115532 |
| Leuciscus meidingeri Heckel, 1851 | Rutilus meidingeri | 13696 |
| Notropis mekistocholas Snelson, 1971 | Notropis mekistocholas | 3814 |
| Abramis melaenus Agassiz, 1835 | Abramis brama | 13696 |
| Plargyrus melanocephalus Abbott, 1860 | Pimephales promelas | 33021 |
| Abramis melanops Heckel, 1837 | Vimba melanops | 7442 |
| Dionda melanops Girard, 1856 | Dionda melanops | 52299 |
| Notropis melanostomus Bortone, 1989 | Miniellus melanostomus | 6455 |
| Catostomus melanotus Rafinesque, 1820 | Campostoma anomalum | 33021 |
| Idus melanotus Heckel, 1843 | Leuciscus idus | 13696 |
| Idus melanotus orientalis Sinitzyn, 1900 | Leuciscus idus | 13696 |
| Cyprinus melanurus Rafinesque, 1817 | Luxilus cornutus | 33021 |
| Rhinichthys meleagris Agassiz, 1854 | Rhinichthys obtusus | 52299 |
| Aspius mento (non Heckel, 1837) | Alburnus chalcoides | 13696 |
| Aspius mento (non Perty, 1832) | Alburnus chalcoides | 13696 |
| Aspius mento Heckel, 1836 | Alburnus mento | 75106 |
| Aspius mento Perty, 1832 | Alburnus mento | 75106 |
| Alburnus mentoides (non Kessler, 1859) | Alburnus chalcoides | 59043 |
| Alburnus mentoides Kessler, 1859 | Alburnus mentoides | 59043 |
| Squalius meridionalis Blanchard, 1866 | Squalius cephalus | 13696 |
| Notropis merlini Suttkus & Mettee, 2001 | Pteronotropis merlini | 52299 |
| Aspiopsis merzbacheri Zugmayer, 1912 | Leuciscus merzbacheri | 33021 |
| Notropis metallicus Jordan & Meek, 1884 | Pteronotropis metallicus | 40813 |
| Paraphoxinus metohiensis Steindachner, 1901 | Telestes metohiensis | 13696 |
| Squalius meunier Heckel, 1852 | Squalius cephalus | 13696 |
| Aztecula mexicana Meek, 1902 | Aztecula sallaei | 33021 |
| Abramis microlepidotus Valenciennes, 1844 | Abramis brama | 13696 |
| Cyprinus microlepidotus Ekström, 1835 | Leuciscus idus | 13696 |
| Leuciscus microlepidotus Ayres, 1854 | Orthodon microlepidotus | 12965 |
| Abramis microlepis De Filippi, 1863 | Acanthobrama microlepis | 33021 |
| Alburnus microlepis Heckel, 1843 | Alburnus sellal | 33550 |
| Squalius microlepis Heckel, 1843 | Squalius microlepis | 59043 |
| Ceratichthys micropogon Cope, 1865 | Nocomis micropogon | 12965 |
| Salmo microps Hardin, 1862 | Pelecus cultratus | 13696 |
| Abramis micropteryx Valenciennes, 1844 | Blicca bjoerkna | 13696 |
| Alburnellus micropteryx Cope, 1868 | Notropis micropteryx | 54621 |
| Chondrostoma miegii Steindachner, 1866 | Parachondrostoma miegii | 55426 |
| Chondrostoma miegii (non Steindachner, 1866) | Parachondrostoma toxostoma | 13696 |
| Pimephales milesii Cope, 1865 | Pimephales promelas | 33021 |
| Nocomis milneri Jordan, 1877 | Couesius plumbeus | 1998 |
| Telestes miloradi Bogutskaya, Zupančič, Bogut & Naseka, 2012 | Telestes miloradi | 89938 |
| Gila minacae Meek, 1902 | Gila minacae | 52299 |
| Gila minacae (non Meek, 1902) | Gila robusta | 52299 |
| Idus miniatus Bonaparte, 1845 | Leuciscus idus | 13696 |
| Idus miniatus Heckel & Kner, 1858 | Leuciscus idus | 13696 |
| Paraphoxinus minutus Karaman, 1924 | Pelasgus minutus | 13696 |
| Exoglossum mirabile Girard, 1856 | Phenacobius mirabilis | 12965 |
| Acanthobrama mirabilis Ladiges, 1960 | Vimba mirabilis | 33550 |
| Acanthobrama mirabilis (non Ladiges, 1960) | Vimba vimba | 33550 |
| Alburnus mirandella Blanchard, 1866 | Alburnus alburnus | 13696 |
| Hesperoleucus mitrulus Snyder, 1913 | Hesperoleucus symmetricus | 33021 |
| Cheonda modesta Garman, 1881 | Gila modesta | 26282 |
| Siphateles mohavensis Snyder, 1918 | Siphateles bicolor | 27116 |
| Lepidomeda mollispinis Miller & Hubbs, 1960 | Lepidomeda mollispinis | 86798 |
| Lepidomeda mollispinis pratensis Miller & Hubbs, 1960 | Lepidomeda mollispinis | 33021 |
| Ceratichthys monachus Cope, 1868 | Cyprinella monacha | 26282 |
| Squalius mongolicus Kessler, 1876 | Leuciscus waleckii | 54621 |
| Phoxynus montanus Ogérien, 1863 | Phoxinus phoxinus | 13696 |
| Algansea monticola Barbour & Contreras-Balderas, 1968 | Algansea monticola | 52299 |
| Algansea monticola archidion Barbour & Miller, 1994 | Algansea monticola | 54621 |
| Algansea monticola avia Barbour & Miller, 1978 | Algansea avia | 52299 |
| Cliola montiregis Cope, 1885 | Cyprinella rutila | 33021 |
| Notropis moralesi de Buen, 1955 | Notropis moralesi | 81264 |
| Cyprinus morella Leske, 1774 | Phoxinus phoxinus | 13696 |
| Campostoma mormyrus Cope, 1865 | Campostoma pullum | 33021 |
| Alburnus mossulensis Heckel, 1843 | Alburnus mossulensis | 76902 |
| Alburnus mossulensis delineatus Battalgil, 1942 | Alburnus mossulensis | 33550 |
| Cyprinus mugilis Vallot, 1837 | Leuciscus leuciscus | 13696 |
| Notropis muskoka Meek, 1899 | Notropis heterolepis | 33021 |
| Leuciscus muticellus Bonaparte, 1837 | Telestes muticellus | 45688 |
| Leuciscus muticellus (non Bonaparte, 1837) | Telestes souffia | 12965 |
| Leuciscus nachtriebi (non Cox, 1896) | Margariscus margarita | 81932 |
| Leuciscus nachtriebi Cox, 1896 | Margariscus nachtriebi | 1998 |
| Gila nacrea Cope, 1871 | Gila robusta | 33021 |
| Tribolodon nakamurai Doi & Shinzawa, 2000 | Pseudaspius nakamurai | 41299 |
| Alburnoides namaki Bogutskaya & Coad, 2009 | Alburnoides namaki | 82592 |
| Chondrochilus nasicus Heckel, 1843 | Chondrostoma soetta | 13696 |
| Alburnus nasreddini Battalgil, 1943 | Alburnus nasreddini | 33550 |
| Cyprinus nasus Linnaeus, 1758 | Chondrostoma nasus | 13696 |
| Chondrostoma nasus angorensis Elvira, 1987 | Chondrostoma angorense | 27763 |
| Chondrostoma nasus angorensis (non Elvira, 1987) | Chondrostoma nasus | 27763 |
| Chondrostomus nasus auratus Schäfer, 1844 | Chondrostoma nasus | 13696 |
| Chondrostoma nasus borysthenicum Berg, 1914 | Chondrostoma nasus | 27763 |
| Chondrostoma nasus borysthenicum Berg, 1914 | Chondrostoma variabile | 27763 |
| Chondrostoma nasus hernadiensis Jeitteles, 1862 | Chondrostoma nasus | 13696 |
| Chondrostoma nasus lumi Poljakov, Filipi & Basho, 1958 | Chondrostoma nasus | 13696 |
| Chondrostoma nasus ohridanum Karaman, 1924 | Chondrostoma nasus | 13696 |
| Chondrostoma nasus prespensis Karaman, 1924 | Chondrostoma prespense | 13696 |
| Chondrostoma nasus taeniata Fatio, 1882 | Chondrostoma nasus | 13696 |
| Chondrostoma nasus var. macrolepidotus Veesenmayer, 1884 | Chondrostoma nasus | 13696 |
| Chondrostoma nasus vardarensis Karaman, 1928 | Chondrostoma vardarense | 13696 |
| Campostoma nasutum Girard, 1856 | Campostoma pullum | 33021 |
| Hesperoleucus navarroensis Snyder, 1913 | Hesperoleucus symmetricus | 33021 |
| Notropis nazas Meek, 1904 | Notropis nazas | 27116 |
| Nocomis nebracensis Girard, 1856 | Nocomis biguttatus | 33021 |
| Leuciscus neglectus Selys-Longchamps, 1842 | Leuciscus idus | 13696 |
| Phoxinus neogaeus Cope, 1867 | Chrosomus neogaeus | 5723 |
| Alburnus neretvae Buj, Šanda & Perea, 2010 | Alburnus neretvae | 85064 |
| Rhinichthys nevadensis Gilbert, 1893 | Rhinichthys osculus | 81932 |
| Alburnoides nicolausi Bogutskaya & Coad, 2009 | Alburnoides nicolausi | 82592 |
| Hyborhynchus nigellus Cope, 1875 | Pimephales promelas | 33021 |
| Gila nigra (non Cope, 1875) | Gila intermedia | 46206 |
| Gila nigra Cope, 1875 | Gila nigra | 86798 |
| Exoglossum nigrescens Rafinesque, 1818 | Exoglossum maxillingua | 33021 |
| Tigoma nigrescens Girard, 1856 | Gila nigrescens | 12965 |
| Hybognathus nigrotaeniata Cope, 1880 | Dionda nigrotaeniata | 52299 |
| Graodus nigrotaeniatus Günther, 1868 | Notropis boucardi | 33021 |
| Pseudophoxinus ninae Freyhof & Özulug, 2006 | Pseudophoxinus ninae | 57693 |
| Moniana nitida Girard, 1856 | Notropis braytoni | 33021 |
| Alburnus nitidus Kirtland, 1854 | Notropis atherinoides | 33021 |
| Leuciscus nitidus DeKay, 1842 | Semotilus corporalis | 33021 |
| Hybopsis niveus Cope, 1870 | Cyprinella nivea | 12965 |
| Notropis nocomis Evermann, 1892 | Hybopsis amnis | 33021 |
| Notropis nocomis Jordan & Gilbert, 1886 | Notropis volucellus | 33021 |
| Abramis nordmannii Dybowski, 1862 | Vimba vimba | 13696 |
| Notropis norrisi Fowler, 1945 | Pteronotropis harperi | 33021 |
| Cyprinella notata Girard, 1856 | Cyprinella venusta | 33021 |
| Minnilus notatus Rafinesque, 1820 | Pimephales notatus | 12965 |
| Leuciscus nothulus Bonaparte, 1841 | Squalius cephalus | 13696 |
| Alburnops nubilus Forbes, 1878 | Miniellus nubilus | 12965 |
| Argyreus nubilus Girard, 1856 | Rhinichthys osculus | 50838 |
| Hybognathus nuchalis Agassiz, 1855 | Hybognathus nuchalis | 86798 |
| Achondrostoma numantinum Doadrio, Casal-López & Perea, 2023 | Achondrostoma numantinum | 128766 |
| Notropis nux Evermann, 1892 | Notropis texanus | 33021 |
| Algansea obesa Girard, 1856 | Siphateles bicolor | 33021 |
| Alburnoides oblongus Bulgakov, 1923 | Alburnoides oblongus | 1441 |
| Alburnus obtusus Heckel, 1843 | Alburnus alburnus | 13696 |
| Rhinichthys obtusus Agassiz, 1854 | Rhinichthys obtusus | 52299 |
| Chondrostoma occidentale Robalo, Almada, Sousa Santos, Moreira & Doadrio, 2005 | Achondrostoma occidentale | 55625 |
| Leucosomus occidentalis Baird & Girard, 1854 | Lavinia exilicauda | 33021 |
| Aspius ochrodon Fitzinger, 1832 | Alburnus alburnus | 13696 |
| Alburnus oligaspis Cope, 1865 | Notropis atherinoides | 33021 |
| Chondrostoma oligolepis Robalo, Doadrio, Almada & Kottelat, 2005 | Achondrostoma oligolepis | 55616 |
| Chondrostoma olisiponense Gante, Santos & Alves, 2007 | Iberochondrostoma olisiponense | |
| Leucus olivaceus Cope, 1883 | Siphateles bicolor | 33021 |
| Notropis orca Woolman, 1894 | Notropis orca | 5723 |
| Phoxinus orcuttii Eigenmann & Eigenmann, 1890 | Gila orcuttii | 12965 |
| Chrosomus oreas Cope, 1868 | Chrosomus oreas | 82741 |
| Cyprinus oregonensis Richardson, 1836 | Ptychocheilus oregonensis | 1998 |
| Rutilus oregonensis Snyder, 1908 | Siphateles bicolor | 27116 |
| Chondrostoma oretanum Doadrio & Carmona, 2003 | Iberochondrostoma oretanum | 55426 |
| Cyprinus orfus Linnaeus, 1758 | Leuciscus idus | 13696 |
| Leuciscus orientalis Nordmann, 1840 | Squalius cephalus | 13696 |
| Squalius orientalis (non Heckel, 1847) | Squalius cephalus | 83299 |
| Squalius orientalis Heckel, 1847 | Squalius orientalis | 83299 |
| Leuciscus orientalis pursakensis (non Hankó, 1925) | Squalius cephalus | 93268 |
| Leuciscus orientalis pursakensis Hankó, 1925 | Squalius pursakensis | 95876 |
| Codoma ornata Girard, 1856 | Codoma ornata | 80389 |
| Campostoma ornatum Girard, 1856 | Campostoma ornatum | 86798 |
| Cochlognathus ornatus Baird & Girard, 1854 | Pimephales vigilax | 92135 |
| Alburnus orontis Sauvage, 1882 | Alburnus orontis | 33550 |
| Squalius orpheus Kottelat & Economidis, 2006 | Squalius orpheus | 57141 |
| Notropis ortenburgeri Hubbs, 1927 | Miniellus ortenburgeri | 131297 |
| Cyprinus orthonotus Hermann, 1804 | Squalius cephalus | 13696 |
| Apocope oscula thermalis Hubbs & Kühne, 1937 | Rhinichthys osculus | 81932 |
| Argyreus osculus Girard, 1856 | Rhinichthys osculus | 4566 |
| Opsopoeodus osculus Evermann, 1892 | Opsopoeodus emiliae | 33021 |
| Rhinichthys osculus lethoporus Hubbs & Miller, 1972 | Rhinichthys osculus | 5723 |
| Rhinichthys osculus moapae Williams, 1978 | Rhinichthys osculus | 81932 |
| Rhinichthys osculus oligoporus Hubbs & Miller, 1972 | Rhinichthys osculus | 5723 |
| Rhinichthys osculus reliquus Hubbs & Miller, 1972 | Rhinichthys osculus | 81932 |
| Hybognathus osmerinus Cope, 1870 | Hybognathus regius | 33021 |
| Aspius ovsianka Czernay, 1851 | Leucaspius delineatus | 13696 |
| Aspius owsianka Czernay, 1851 | Leucaspius delineatus | 33021 |
| Idus oxianus Kessler, 1877 | Leuciscus idus | 13696 |
| Squalius oxianus Kessler, 1877 | Leuciscus idus | 13696 |
| Pseudophoxinus oxycephalus (non Sauvage & Dabry de Thiersant, 1874) | Rhynchocypris lagowskii | 33783 |
| Pseudophoxinus oxycephalus Sauvage & Dabry de Thiersant, 1874 | Rhynchocypris oxycephala | 82587 |
| Chondrostoma oxyrhynchum (non Kessler, 1877) | Chondrostoma cyri | 27763 |
| Chondrostoma oxyrhynchum Kessler, 1877 | Chondrostoma oxyrhynchum | 27763 |
| Moroco oxyrhynchus Mori, 1930 | Phoxinus oxyrhynchus | 54621 |
| Notropis oxyrhynchus Hubbs & Bonham, 1951 | Notropis oxyrhynchus | 3814 |
| Squalius oxyrrhis (non La Blanchère, 1873) | Leuciscus burdigalensis | 59043 |
| Squalius oxyrrhis La Blanchère, 1873 | Leuciscus oxyrrhis | 13696 |
| Notropis ozarcanus Meek, 1891 | Notropis ozarcanus | 5723 |
| Leuciscus pagellus De Filippi, 1844 | Leucos aula | 13696 |
| Iberocypris palaciosi Doadrio, 1980 | Iberocypris palaciosi | 59043 |
| Cyprinus pallasii Kessler, 1860 | Leucaspius delineatus | 13696 |
| Leuciscus pallens Blanchard, 1866 | Rutilus rutilus | 13696 |
| Macrhybopsis pallida Gilbert & Mayden, 2017 | Macrhybopsis pallida | 116539 |
| Alburnus pallidus Heckel, 1843 | Alburnus sellal | 33550 |
| Leucosomus pallidus Girard, 1856 | Semotilus atromaculatus | 33021 |
| Notropis panarcys Hubbs & Miller, 1978 | Cyprinella panarcys | 54621 |
| Clinostomus pandora Cope, 1872 | Gila pandora | 12965 |
| Rutilus panosi Bogutskaya & Iliadou, 2006 | Leucos panosi | 56409 |
| Dionda papalis Girard, 1856 | Dionda episcopa | 33021 |
| Algansea paratincella Álvarez, 1963 | Algansea tincella | 33021 |
| Squalius pareti Bonaparte, 1841 | Squalius cephalus | 13696 |
| Alburnoides parhami Mousavi-Sabet, Vatandoust & Doadrio, 2015 | Alburnoides parhami | 106248 |
| Colistus parietalis Cope, 1871 | Pimephales promelas | 33021 |
| Myloleucus parovanus Cope, 1874 | Gila atraria | 33021 |
| Hesperoleucus parvipinnis Snyder, 1913 | Hesperoleucus symmetricus | 33021 |
| Leuciscus parvulus Valenciennes, 1844 | Vimba vimba | 13696 |
| Campostoma pauciradii Burr & Cashner, 1983 | Campostoma pauciradii | 86798 |
| Leuciscus pauperum De Filippi, 1844 | Leucos aula | 13696 |
| Leuciscus pausingeri Heckel, 1843 | Rutilus rutilus | 13696 |
| Leucidius pectinifer Snyder, 1917 | Siphateles bicolor | 27116 |
| Leuciscus peloponensis (non Valenciennes, 1844) | Squalius cephalus | 72459 |
| Leuciscus peloponensis Valenciennes, 1844 | Squalius peloponensis | 13696 |
| Cyprinus percnurus Pallas, 1814 | Rhynchocypris percnura | 55612 |
| Phoxinus percnurus dauricus Dybowski, 1877 | Rhynchocypris percnura | |
| Phoxinus percnurus gdaniensis Berg, 1932 | Rhynchocypris percnura | 13696 |
| Phoxinus percnurus mantschuricus Berg, 1907 | Rhynchocypris mantschurica | 13696 |
| Phoxinus percnurus occidentalis Kaj, 1954 | Rhynchocypris percnura | 13696 |
| Phoxinus percnurus posnaniensis Berg, 1932 | Rhynchocypris percnura | 13696 |
| Phoxinus percnurus sachalinensis Berg, 1907 | Rhynchocypris percnura | 36656 |
| Phoxinus percnurus sarykul Ruzsky, 1926 | Rhynchocypris percnura | 13696 |
| Phoxinus percnurus suifunensis Berg, 1932 | Rhynchocypris oxycephala | 26282 |
| Alburnellus percobromus Cope, 1871 | Notropis percobromus | 54621 |
| Alburnellus percobromus (non Cope, 1871) | Notropis rubellus | 52299 |
| Chondrostoma peresi La Blanchère, 1873 | Parachondrostoma toxostoma | 13696 |
| Notropis perpallidus Hubbs & Black, 1940 | Notropis perpallidus | 3814 |
| Cyprinus persa Pallas, 1814 | Vimba vimba | 13696 |
| Pseudophoxinus persidis Coad, 1981 | Acanthobrama persidis | 31728 |
| Hyborhynchus perspicuus Girard, 1856 | Pimephales vigilax | |
| Notropis petersoni Fowler, 1942 | Notropis petersoni | 5723 |
| Alburnoides petrubanarescui Bogutskaya & Coad, 2009 | Alburnoides petrubanarescui | 82592 |
| Leuciscus pewzowi Herzenstein, 1883 | Oreoleuciscus potanini | 33021 |
| Oreoleuciscus pewzowi (non Herzenstein, 1883) | Oreoleuciscus humilis | 26334 |
| Oreoleuciscus pewzowi Herzenstein, 1883 | Oreoleuciscus potanini | 41072 |
| Hybobsis phaenna Cope, 1865 | Notropis hudsonius | 33021 |
| Clinostomus phlegethontis Cope, 1874 | Iotichthys phlegethontis | 12965 |
| Squalius photogenis Cope, 1865 | Notropis photogenis | 12965 |
| Chondrostoma phoxinus Heckel, 1843 | Chondrostoma phoxinus | 13696 |
| Cyprinus phoxinus Linnaeus, 1758 | Phoxinus phoxinus | 13696 |
| Phoxinus phoxinus carpathicus Popescu Gorj & Dumitriu, 1950 | Phoxinus phoxinus | 13696 |
| Phoxinus phoxinus colchicus Berg, 1910 | Phoxinus colchicus | 13696 |
| Phoxinus phoxinus colchicus (non Berg, 1910) | Phoxinus phoxinus | 13696 |
| Phoxinus phoxinus strandjae (non Drensky, 1926) | Phoxinus phoxinus | 59043 |
| Phoxinus phoxinus strandjae Drensky, 1926 | Phoxinus strandjae | 13696 |
| Squalius pictus Heckel & Kner, 1858 | Pachychilon pictum | 13696 |
| Leuciscus pigmeus Platera, 1861 | Leucaspius delineatus | 13696 |
| Gardonus pigulus Bonaparte, 1841 | Rutilus rutilus | 13696 |
| Leucos pigulus Bonaparte, 1845 | Rutilus rutilus | 13696 |
| Cyprinus pigus Lacepède, 1803 | Rutilus pigus | 13696 |
| Cyprinus pigus Gronow, 1854 | Rutilus rutilus | 13696 |
| Leuciscus pigus dojranensis Karaman, 1928 | Rutilus rutilus | 13696 |
| Notropis pilsbryi Fowler, 1904 | Luxilus pilsbryi | 3814 |
| Photogenis piptolepis Cope, 1871 | Ericymba dorsalis | 33021 |
| Hybognathus placitus Girard, 1856 | Hybognathus placitus | 86798 |
| Scardinius platizza Heckel, 1845 | Scardinius erythrophthalmus | 13696 |
| Squalius platyceps Zupančič, Marić, Naseka & Bogutskaya, 2010 | Squalius platyceps | 85051 |
| Nocomis platyrhynchus Lachner & Jenkins, 1971 | Nocomis platyrhynchus | 86798 |
| Cyprinus plestya Leske, 1774 | Blicca bjoerkna | 13696 |
| Alburnus pleuriticus Putnam, 1863 | Clinostomus elongatus | 33021 |
| Rutilus pleurobipunctatus Stephanidis, 1939 | Telestes pleurobipunctatus | 13696 |
| Rutilus pleurobipunctatus alfiensis Stephanidis, 1971 | Telestes pleurobipunctatus | 13696 |
| Scardinius plotizza (non Heckel & Kner, 1858) | Scardinius erythrophthalmus | 59043 |
| Scardinius plotizza Heckel & Kner, 1858 | Scardinius plotizza | 59043 |
| Dionda plumbea Girard, 1856 | Campostoma pullum | 33021 |
| Gobio plumbeus Agassiz, 1850 | Couesius plumbeus | 1998 |
| Couesius plumbeus greeni Ahl, 1926 | Couesius plumbeus | 10937 |
| Couesius plumbeus rubrilateralis Cox, 1901 | Couesius plumbeus | 33021 |
| Couesius plumbeus rubrilateralis (non Cox, 1901) | Margariscus margarita | 33021 |
| Phoxinus poljakowii Kessler, 1879 | Rhynchocypris poljakowii | 83762 |
| Chondrostoma polylepis Steindachner, 1864 | Pseudochondrostoma polylepis | 13696 |
| Telestes polylepis Steindachner, 1866 | Telestes polylepis | 59043 |
| Chondrostoma polylepis duriensis Coelho, 1985 | Pseudochondrostoma duriense | 27763 |
| Chondrostoma polylepis duriensis (non Coelho, 1985) | Pseudochondrostoma polylepis | 27763 |
| Xystrosus popoche Jordan & Snyder, 1899 | Algansea popoche | 26282 |
| Chondrostoma potanini Kessler, 1879 | Oreoleuciscus potanini | 26282 |
| Notropis potteri Hubbs & Bonham, 1951 | Notropis potteri | 5723 |
| Leuciscus prasinus Agassiz, 1835 | Rutilus rutilus | 13696 |
| Rutilus prespensis vukovici Marić, 1988 | Leucos basak | 96829 |
| Hybognathus procne Cope, 1865 | Miniellus procne | 12965 |
| Pimephales promelas Rafinesque, 1820 | Pimephales promelas | 86798 |
| Pimephales promelas harveyensis Hubbs & Lagler, 1949 | Pimephales promelas | 33021 |
| Squalius proriger Cope, 1865 | Clinostomus elongatus | 33021 |
| Moniana proserpina Girard, 1856 | Cyprinella proserpina | 26282 |
| Leucaspius prosperi Gianferrari, 1927 | Squalius ghigii | 13373 |
| Ceratichthys prosthemius Cope, 1867 | Couesius plumbeus | 1998 |
| Phoxinellus pseudalepidotus Bogutskaya & Zupančič, 2003 | Phoxinellus pseudalepidotus | 52853 |
| Paraphoxinus pstrossii Steindachner, 1882 | Delminichthys ghetaldii | 50603 |
| Gila pulchella Baird & Girard, 1854 | Gila nigrescens | 33021 |
| Moniana pulchella Girard, 1856 | Cyprinella lutrensis | 33021 |
| Leuciscus pulchelloides Ayres, 1850 | Semotilus atromaculatus | 33021 |
| Leuciscus pulchellus Storer, 1839 | Semotilus corporalis | 33021 |
| Tigoma pulchra Girard, 1856 | Gila pulchra | 27116 |
| Chondrostoma pullum Agassiz, 1854 | Campostoma pullum | 27116 |
| Myloleucus pulverulentus Cope, 1872 | Gila atraria | 33021 |
| Tribolodon punctatum Sauvage, 1883 | Pseudaspius hakonensis | 33783 |
| Cyprinus punctatus Shaw, 1804 | Alburnoides bipunctatus | 13696 |
| Alburnus punctulatus Kessler, 1877 | Acanthobrama microlepis | 33550 |
| Hyborhynchus puniceus Girard, 1856 | Pimephales promelas | 33021 |
| Phoxinellus punicus Pellegrin, 1920 | Anaecypris punica | 2801 |
| Tigoma purpurea Girard, 1856 | Gila purpurea | 12965 |
| Leuciscus pyrenaicus Günther, 1868 | Squalius pyrenaicus | 13696 |
| Chrosomus pyrrhogaster Jordan, 1876 | Chrosomus erythrogaster | 81932 |
| Photogenis pyrrhomelas Cope, 1870 | Cyprinella pyrrhomelas | 12965 |
| Alburnus qalilus Krupp, 1992 | Alburnus qalilus | 39257 |
| Alburnoides qanati Coad & Bogutskaya, 2009 | Alburnoides qanati | 81462 |
| Scardinius racovitzai Müller, 1958 | Scardinius racovitzai | 59043 |
| Phoxinus radeki Bayçelebi, Aksu & Turan, 2024 | Phoxinus radeki | 131043 |
| Notropis rafinesquei Suttkus, 1991 | Notropis rafinesquei | 40966 |
| Nocomis raneyi Lachner & Jenkins, 1971 | Nocomis raneyi | 86798 |
| Aspius rapax Agassiz, 1835 | Leuciscus aspius | 33021 |
| Cyprinus rapax Leske, 1774 | Leuciscus aspius | 13696 |
| Cyprinus rapax Pallas, 1814 | Leuciscus aspius | 33021 |
| Ptychocheilus rapax Girard, 1856 | Ptychocheilus oregonensis | 33021 |
| Aspius rapax jaxartensis Kessler, 1874 | Leuciscus aspius | 13696 |
| Notropis rasconis Jordan & Snyder, 1899 | Tampichthys rasconis | 27116 |
| Alburnoides recepi Turan, Kaya, Ekmekçi & Dogan, 2014 | Alburnoides recepi | 94737 |
| Squalius recurvirostris Özuluğ & Freyhof, 2011 | Squalius recurvirostris | 87183 |
| Chondochilus regius Heckel, 1843 | Chondrostoma regium | 109283 |
| Hybognathus regius Girard, 1856 | Hybognathus regius | 86798 |
| Leucaspius relictus Warpachowski, 1889 | Leucaspius delineatus | 13696 |
| Chondrostoma rhodanensis Blanchard, 1866 | Parachondrostoma toxostoma | 13696 |
| Scardinius rhodophthalmus Heckel, 1845 | Scardinius hesperidicus | 83710 |
| Squalius rhomaleus Jordan & Gilbert, 1881 | Gila atraria | 33021 |
| Leucosomus rhotheus Cope, 1861 | Semotilus corporalis | 33021 |
| Cyprinus riemling Hermann, 1804 | Alburnoides bipunctatus | 13696 |
| Leuciscus rissoi Schinz, 1840 | Squalius cephalus | 13696 |
| Salmo rivularis Pallas, 1773 | Phoxinus phoxinus | 12965 |
| Gila robusta Baird & Girard, 1853 | Gila robusta | 86798 |
| Mylopharodon robustus Ayres, 1855 | Mylopharodon conocephalus | 33021 |
| Notropis robustus Meek, 1902 | Notropis braytoni | 33021 |
| Leuciscus rodens Agassiz, 1835 | Leuciscus leuciscus | 13696 |
| Notropis roseipinnis Hay, 1885 | Lythrurus roseipinnis | 3814 |
| Leuciscus roseus Bonaparte, 1839 | Rutilus pigus | 13696 |
| Luxilus roseus Jordan, 1877 | Notropis texanus | 33021 |
| Leuciscus rostratus Agassiz, 1835 | Leuciscus leuciscus | 13696 |
| Leuciscus rostratus Valenciennes, 1844 | Leuciscus leuciscus | 13696 |
| Leuciscus rubella Bonaparte, 1837 | Sarmarutilus rubilio | 13696 |
| Rutilus rubella karamani Fowler, 1977 | Leucos basak | 96829 |
| Leucos rubellicus Bonaparte, 1845 | Leucos aula | 13696 |
| Cyprinus rubellio Leske, 1774 | Rutilus rutilus | 13696 |
| Alburnus rubellus (non Agassiz, 1850) | Notropis atherinoides | 1998 |
| Alburnus rubellus Agassiz, 1850 | Notropis rubellus | 12965 |
| Algansea rubescens Meek, 1902 | Algansea tincella | 33021 |
| Notropis rubescens Bailey, 1991 | Hybopsis rubrifrons | 52299 |
| Leuciscus rubilio Bonaparte, 1837 | Sarmarutilus rubilio | 96829 |
| Gardonus ruboculus Walecki, 1863 | Rutilus rutilus | 13696 |
| Hybopsis rubricroceus Cope, 1868 | Notropis rubricroceus | 12965 |
| Alburnus rubrifrons Cope, 1865 | Notropis rubellus | 33021 |
| Nocomis rubrifrons Jordan, 1877 | Hybopsis rubrifrons | 50838 |
| Cyprinella rubripinna Garman, 1881 | Cyprinella garmani | 33021 |
| Argyreus rubripinnis Heckel, 1843 | Luxilus cornutus | 33021 |
| Leuciscus ruffoi Bianco & Recchia, 1983 | Squalius cephalus | 13696 |
| Cyprinus rufus Vallot, 1837 | Squalius cephalus | 13696 |
| Notropis rupestris Page, 1987 | Notropis rupestris | 58354 |
| Moniana rutila Girard, 1856 | Cyprinella rutila | 27116 |
| Leuciscus rutiloides Selys-Longchamps, 1842 | Rutilus rutilus | 13696 |
| Phoxinellus rutiloides Tortonese, 1939 | Pseudophoxinus kervillei | 33550 |
| Cyprinus rutilus (non Linnaeus, 1758) | Rutilus caspicus | 59043 |
| Cyprinus rutilus Linnaeus, 1758 | Rutilus rutilus | 13696 |
| Rutilus rutilus aralensis Berg, 1916 | Rutilus rutilus | 13696 |
| Rutilus rutilus aralensis phragmiteti Berg, 1932 | Rutilus rutilus | 13696 |
| Leuciscus rutilus aurata Fatio, 1882 | Rutilus rutilus | 13696 |
| Leuciscus rutilus auratus Yakovlev, 1873 | Rutilus rutilus | 13696 |
| Leuciscus rutilus bolmensis Malm, 1877 | Rutilus rutilus | 13696 |
| Rutilus rutilus bucharensis Nikolskii, 1933 | Rutilus rutilus | 13696 |
| Rutilus rutilus carpathorossicus Vladykov, 1930 | Rutilus rutilus | 13696 |
| Leuciscus rutilus caspicus Yakovlev, 1870 | Rutilus caspicus | 13696 |
| Leuciscus rutilus caspicus (non Yakovlev, 1870) | Rutilus rutilus | 59043 |
| Rutilus rutilus caspicus geoktshaicus Barach, 1941 | Rutilus rutilus | 13696 |
| Rutilus rutilus caspicus knipowitschi Pravdin, 1927 | Rutilus rutilus | 13696 |
| Rutilus rutilus caspicus kurensis Berg, 1932 | Rutilus rutilus | 13696 |
| Rutilus rutilus caspicus tscharchalensis Berg, 1932 | Rutilus rutilus | 13696 |
| Leuciscus rutilus communis Rossikov, 1895 | Rutilus rutilus | 13696 |
| Leuciscus rutilus communis Yakovlev, 1873 | Rutilus rutilus | 13696 |
| Leuciscus rutilus crassa Fatio, 1882 | Rutilus rutilus | 13696 |
| Leuciscus rutilus daugawensis Dybowski, 1862 | Rutilus rutilus | 13696 |
| Leuciscus rutilus elata Fatio, 1882 | Rutilus rutilus | 13696 |
| Leuciscus rutilus elongata Fatio, 1882 | Rutilus rutilus | 13696 |
| Leuciscus rutilus erytraea Antipa, 1909 | Rutilus rutilus | 13696 |
| Leuciscus rutilus fluviatilis Yakovlev, 1873 | Rutilus rutilus | 13696 |
| Rutilus rutilus frici Misik, 1957 | Rutilus rutilus | 13696 |
| Rutilus rutilus goplensis Stangenberg, 1938 | Rutilus rutilus | 13696 |
| Rutilus rutilus lacustris menschikowi Kirillov, 1962 | Rutilus rutilus | 13696 |
| Rutilus rutilus mariza Drensky, 1926 | Rutilus rutilus | 13696 |
| Rutilus rutilus schelkovnikovi Derjavin, 1926 | Rutilus rutilus | 13696 |
| Rutilus rutilus sucharensis Stangenberg, 1938 | Rutilus rutilus | 13696 |
| Leuciscus rutilus terekensis Rossikov, 1895 | Rutilus rutilus | 13696 |
| Rutilus rutilus uzboicus Berg, 1932 | Rutilus rutilus | 13696 |
| Rutilus rutilus vegariticus Stephanidis, 1950 | Rutilus rutilus | 13696 |
| Leuciscus rutilus vobla Dikson, 1909 | Rutilus rutilus | 13696 |
| Leuciscus rutilus wobla Grimm, 1896 | Rutilus rutilus | 13696 |
| Chondrostoma rysela Agassiz, 1835 | Telestes souffia | 13696 |
| Telestes rysela Heckel, 1851 | Telestes souffia | 13696 |
| Leuciscus ryzela Valenciennes, 1844 | Rutilus pigus | 13696 |
| Phoxinus sabanejewi Warpachowski, 1887 | Rhynchocypris percnura | 13696 |
| Notropis sabinae Jordan & Gilbert, 1886 | Miniellus sabinae | 5723 |
| Leuciscus sachalinensis (non Nikolskii, 1889) | Pseudaspius brandtii | 58051 |
| Leuciscus sachalinensis Nikolskii, 1889 | Pseudaspius sachalinensis | 58051 |
| Notropis saladonis Hubbs & Hubbs, 1958 | Notropis saladonis | 81264 |
| Cyprinus salax Gronow, 1854 | Leuciscus leuciscus | 13696 |
| Ceratichthys sallaei Günther, 1868 | Aztecula sallaei | 26282 |
| Achondrostoma salmantinum Doadrio & Elvira, 2007 | Achondrostoma salmantinum | 75032 |
| Cyprinus salmoneus Gronow, 1854 | Squalius cephalus | 13696 |
| Leuciscus saltator Bonaparte, 1846 | Leuciscus leuciscus | 13696 |
| Alburnops saludanus Jordan & Brayton, 1878 | Notropis hudsonius | 33021 |
| Alburnoides samiii Mousavi-Sabet, Vatandoust & Doadrio, 2015 | Alburnoides samiii | 106248 |
| Cyprinus sanderi Bloch & Schneider, 1801 | Alburnoides bipunctatus | 13696 |
| Notropis santamariae Evermann & Goldsborough, 1902 | Cyprinella formosa | 42680 |
| Notropis santarosaliae Meek, 1902 | Notropis jemezanus | 33021 |
| Cyprinus sapa Pallas, 1814 | Ballerus sapa | 1441 |
| Abramis sapa aralensis Tiapkin, 1939 | Ballerus sapa | 13696 |
| Abramis sapa bergi Belyaeff, 1929 | Ballerus sapa | 13696 |
| Phoxinus saposchnikowi (non Kashchenko, 1899) | Phoxinus phoxinus | 13696 |
| Phoxinus saposchnikowi Kaschenko, 1899 | Phoxinus ujmonensis | 57778 |
| Leuciscus sardella Valenciennes, 1844 | Sarmarutilus rubilio | 13696 |
| Alburnus sarmaticus Freyhof & Kottelat, 2007 | Alburnus sarmaticus | 75106 |
| Phoxinus satunini Berg, 1910 | Leucalburnus satunini | 26282 |
| Alburnus sava Bogutskaya, Zupančič, Jelić, Diripasko & Naseka, 2017 | Alburnus sava | 116758 |
| Telestes savigny Bonaparte, 1840 | Telestes muticellus | 13696 |
| Phoxinus saylori Skelton, 2001 | Chrosomus saylori | 52299 |
| Photogenis scabriceps Cope, 1868 | Miniellus scabriceps | 12965 |
| Leuciscus scardafa (non Bonaparte, 1837) | Scardinius erythrophthalmus | 13696 |
| Leuciscus scardafa Bonaparte, 1837 | Scardinius scardafa | 13696 |
| Scardinius scardafa ohridana Vladykov & Petit, 1930 | Scardinius erythrophthalmus | 13696 |
| Leuciscus scardinus De Filippi, 1844 | Leucos aula | 13696 |
| Cyprinus scardula Nardo, 1827 | Scardinius erythrophthalmus | 13696 |
| Leuciscus scarpata Bonaparte, 1837 | Scardinius scardafa | 13696 |
| Leuciscus scarpetta Valenciennes, 1844 | Scardinius scardafa | 13696 |
| Minnilus scepticus Jordan & Gilbert, 1883 | Notropis scepticus | 12965 |
| Alburnus schejtan Heckel, 1846-49 | Alburnus mossulensis | 33021 |
| Leuciscus schisturus Oshima, 1920 | Pseudaspius brandtii | 1441 |
| Chondrostoma schmidti Berg, 1910 | Chondrostoma oxyrhynchum | 33550 |
| Squalius schmidti Herzenstein, 1896 | Leuciscus schmidti | 1441 |
| Abramis schreibersii Heckel, 1837 | Ballerus sapa | 13696 |
| Chondrostoma scodrense Elvira, 1987 | Chondrostoma scodrense | 27763 |
| Sarcidium scopiferum Cope, 1871 | Phenacobius mirabilis | 33021 |
| Notropis scopiferus Eigenmann & Eigenmann, 1893 | Notropis hudsonius | 33021 |
| Alburnus scoranza (non Bonaparte, 1845) | Alburnus alburnus | 59043 |
| Alburnus scoranza (non Heckel & Kner, 1857) | Alburnus alburnus | 59043 |
| Alburnus scoranza Bonaparte, 1845 | Alburnus scoranza | 59043 |
| Alburnus scoranza Heckel & Kner, 1857 | Alburnus scoranza | 59043 |
| Alburnus scoranzoides Heckel & Kner, 1858 | Alburnus alburnus | 13696 |
| Luxilus seco Girard, 1856 | Notemigonus crysoleucas | 33021 |
| Alburnus selcuklui Elp, Şen & Özuluğ, 2015 | Alburnus selcuklui | 115533 |
| Luxilus selene Jordan, 1877 | Notropis hudsonius | 33021 |
| Alburnus sellal (non Heckel, 1843) | Acanthobrama lissneri | 11028 |
| Alburnus sellal Heckel, 1843 | Alburnus sellal | 33550 |
| Alburnus sellal (non Heckel, 1843) | Mirogrex hulensis | 13609 |
| Alburnus sellal (non Heckel, 1843) | Mirogrex terraesanctae | 13609 |
| Alburnus sellal adanensis Battalgazi, 1944 | Alburnus adanensis | 58342 |
| Alburnus sellal adanensis (non Battalgazi, 1944) | Alburnus sellal | 33550 |
| Leuciscus selysii Selys-Longchamps, 1842 | Rutilus rutilus | 13696 |
| Gila seminuda Cope & Yarrow, 1875 | Gila seminuda | 86798 |
| Leuciscus semotilus Jordan & Starks, 1905 | Phoxinus semotilus | 43552 |
| Notropis semperasper Gilbert, 1961 | Notropis semperasper | 3814 |
| Phoxinus septimaniae Kottelat, 2007 | Phoxinus septimaniae | 75055 |
| Dionda serena Girard, 1856 | Dionda serena | 86798 |
| Cyprinus serta Shaw, 1804 | Vimba vimba | 13696 |
| Chondrostoma seva Valenciennes, 1844 | Chondrostoma soetta | 13696 |
| Squalius seyhanensis Turan, Kottelat & Doğan, 2013 | Squalius seyhanensis | 93268 |
| Alburnops shumardi Girard, 1856 | Notropis shumardi | 12965 |
| Agosia shuswap Eigenmann & Eigenmann, 1893 | Rhinichthys falcatus | 33021 |
| Hyborhynchus siderius Cope, 1875 | Agosia chrysogaster | 33021 |
| Stypodon signifer Garman, 1881 | Stypodon signifer | 4537 |
| Notropis signipinnis Bailey & Suttkus, 1952 | Pteronotropis signipinnis | 3814 |
| Oreoleuciscus similis Warpachowski, 1889 | Oreoleuciscus potanini | 33021 |
| Alburnellus simus Cope, 1875 | Notropis simus | 12965 |
| Cyprinus simus Römer-Büchner, 1827 | Leuciscus leuciscus | 13696 |
| Cyprinus simus Hermann, 1804 | Rutilus rutilus | 13696 |
| Notropis simus pecosensis Gilbert & Chernoff, 1982 | Notropis simus | 78811 |
| Leuciscus siuslawi Evermann & Meek, 1898 | Richardsonius balteatus | 33021 |
| Cliola smithii Evermann & Cox, 1896 | Pimephales promelas | 33021 |
| Leuciscus smyrnaeus Boulenger, 1896 | Petroleuciscus smyrnaeus | 13373 |
| Notropis snelsoni Robison, 1985 | Lythrurus snelsoni | 3814 |
| Alburnus socius Girard, 1856 | Notropis amabilis | 33021 |
| Chondrostoma soetta Bonaparte, 1840 | Chondrostoma soetta | 27763 |
| Rutilus sojuchbulagi Abdurakhmanov, 1950 | Pseudophoxinus sojuchbulagi | 39702 |
| Relictus solitarius Hubbs & Miller, 1972 | Relictus solitarius | 86798 |
| Leuciscus souffia Risso, 1827 | Telestes souffia | 556 |
| Leuciscus souffia keadicus Stephanidis, 1971 | Squalius keadicus | 12470 |
| Leuciscus souffia montenigrinus Vukovic, 1963 | Telestes montenigrinus | 13696 |
| Leuciscus souffia muticellus Bonaparte, 1837 | Telestes muticellus | 123477 |
| Dionda spadicea (non Girard, 1856) | Campostoma pullum | 33021 |
| Dionda spadicea Girard, 1856 | Campostoma spadiceum | 95876 |
| Rutilus spartiacus var. megalophthalmus Stephanidis, 1971 | Tropidophoxinellus spartiaticus | 13696 |
| Rutilus spartiaticus Schmidt-Ries, 1943 | Tropidophoxinellus spartiaticus | 13696 |
| Rutilus spartiaticus Stephanidis, 1971 | Tropidophoxinellus spartiaticus | 13696 |
| Semotilus speciosus Girard, 1856 | Semotilus atromaculatus | 33021 |
| Hybopsis spectrunculus Cope, 1868 | Notropis spectrunculus | 12965 |
| Photogenis spilopterus Cope, 1867 | Cyprinella spiloptera | 12965 |
| Notropis spilopterus hypsisomatus Gibbs, 1957 | Cyprinella spiloptera | 33021 |
| Exoglossum spinicephalum Valenciennes, 1844 | Campostoma pullum | 33021 |
| Cyprinus spirlin Lacepède, 1803 | Alburnoides bipunctatus | 13696 |
| Leuciscus spirlingulus Valenciennes, 1844 | Luxilus cornutus | 33021 |
| Squalius spurius Heckel, 1843 | Squalius spurius | 84537 |
| Leuciscus squalius Valenciennes, 1844 | Squalius cephalus | 13696 |
| Squalius squaliusculus Kessler, 1872 | Squalius squaliusculus | 72459 |
| Cyprinus squalus Walbaum, 1792 | Leuciscus leuciscus | 13696 |
| Leuciscus squalus (non Bonaparte, 1837) | Squalius cephalus | 59043 |
| Leuciscus squalus Bonaparte, 1837 | Squalius squalus | 13696 |
| Tigoma squamata Gill, 1861 | Gila atraria | 33021 |
| Idus stagnalis Dubalen, 1913 | Leuciscus leuciscus | 13696 |
| Phoxinus stagnalis Warpachowski, 1886 | Rhynchocypris percnura | 13696 |
| Phoxinus steindachneri Sauvage, 1883 | Phoxinus steindachneri | 26334 |
| Ceratichthys stigmaticus Cope, 1865 | Nocomis biguttatus | 33021 |
| Algansea stigmatura Regan, 1907 | Algansea tincella | 33021 |
| Photogenis stigmaturus Jordan, 1877 | Cyprinella stigmatura | 50838 |
| Notropis stilbius Jordan, 1877 | Notropis stilbius | 5723 |
| Phoxinellus stimphalicus montenigrinus Karaman, 1972 | Pelasgus minutus | 59043 |
| Notropis stonei Fowler, 1921 | Pteronotropis stonei | 40813 |
| Leuciscus storerianus Kirtland, 1845 | Macrhybopsis storeriana | 12965 |
| Rutilus stoumboudae Bianco & Ketmaier, 2014 | Rutilus stoumboudae | 96829 |
| Hybognathus stramineus Cope, 1865 | Miniellus stramineus | 12965 |
| Phoxinus strauchi Warpachowski, 1887 | Rhynchocypris czekanowskii | 57778 |
| Alburnus striatus Petrov, 1926 | Alburnus alburnus | 33021 |
| Alburnus strigio Bonaparte, 1845 | Alburnus alburnus | 13696 |
| Phoxinus strymonicus Kottelat, 2007 | Phoxinus strymonicus | 75055 |
| Leuciscus stymphalicus Valenciennes, 1844 | Pelasgus stymphalicus | 13696 |
| Leucaspius stymphalicus thesproticus (non Stephanidis, 1939) | Pelasgus stymphalicus | 52474 |
| Leucaspius stymphalicus thesproticus Stephanidis, 1939 | Pelasgus thesproticus | 54621 |
| Cyprinella suavis Girard, 1856 | Cyprinella lutrensis | 33021 |
| Phoxinus sublaevis Warpachowski, 1887 | Rhynchocypris czekanowskii | 57778 |
| Hyborhynchus superciliosus Cope, 1868 | Pimephales notatus | 33021 |
| Notropis suttkusi Humphries & Cashner, 1994 | Notropis suttkusi | 34018 |
| Squalius suworzewi Warpachowski, 1889 | Leuciscus baicalensis | 57778 |
| Squalius svallize Heckel & Kner, 1858 | Squalius svallize | 72459 |
| Leuciscus svallize zrmanjae risae Vladykov & Petit, 1930 | Squalius cephalus | 13696 |
| Squalius svallizze zrmanjae Karaman, 1928 | Squalius zrmanjae | 13696 |
| Notropis swaini Jordan & Gilbert, 1885 | Notropis amabilis | 33021 |
| Pogonichthys symmetricus Baird & Girard, 1854 | Hesperoleucus symmetricus | 12965 |
| Rhodeus syriacus Lortet, 1883 | Pseudophoxinus syriacus | 58462 |
| Alburnoides tabarestanensis Mousavi-Sabet, Anvarifar & Azizi, 2015 | Alburnoides tabarestanensis | 106248 |
| Leuciscus taczanowskii Steindachner, 1881 | Pseudaspius brandtii | 26282 |
| Alburnus taeniatus Kessler, 1874 | Alburnoides taeniatus | 1441 |
| Cyprinus taeniatus Eichwald, 1831 | Leuciscus aspius | 13696 |
| Alburnoides taeniatus nikolskyi Turdakov & Piskarev, 1955 | Alburnoides taeniatus | 33021 |
| Algansea tarascorum Steindachner, 1895 | Algansea lacustris | 33021 |
| Cyprinus tarichi Güldenstädt, 1814 | Alburnus tarichi | 26282 |
| Phoxinus tchangi Chen, 1988 | Phoxinus tchangi | 50838 |
| Acanthobrama telavivensis Goren, Fishelson & Trewavas, 1973 | Acanthobrama telavivensis | 11028 |
| Photogenis telescopus Cope, 1868 | Notropis telescopus | 12965 |
| Notropis telescopus arcansanus Meek, 1891 | Notropis telescopus | 33021 |
| Abramis tenellus Nordmann, 1840 | Vimba vimba | 13696 |
| Hyborhynchus tenellus Girard, 1856 | Pimephales tenellus | 12965 |
| Squalius tenellus (non Heckel, 1843) | Squalius microlepis | 59043 |
| Squalius tenellus Heckel, 1843 | Squalius tenellus | 59043 |
| Phoxinus tennesseensis Starnes & Jenkins, 1988 | Chrosomus tennesseensis | 5723 |
| Phenacobius teretulus Cope, 1867 | Phenacobius teretulus | 86798 |
| Phenacobius teretulus liosternus Nelson, 1876 | Phenacobius mirabilis | 33021 |
| Acanthobrama terrae-sanctae (non Steinitz, 1952) | Acanthobrama telavivensis | 11028 |
| Acanthobrama terraesanctae (non Steinitz, 1952) | Acanthobrama lissneri | 13609 |
| Acanthobrama terraesanctae Steinitz, 1952 | Mirogrex terraesanctae | 683 |
| Mirogrex terraesanctae hulensis Goren, Fishelson & Trewavas, 1973 | Mirogrex hulensis | 13609 |
| Acanthobrama terraesanctae oligolepis Karaman, 1972 | Acanthobrama lissneri | 33021 |
| Hybopsis tetranemus Gilbert, 1886 | Macrhybopsis tetranema | 50838 |
| Cyprinella texana Girard, 1856 | Notropis texanus | 12965 |
| Myloleucus thalassinus Cope, 1883 | Siphateles bicolor | 33021 |
| Acanthobrama thisbeae Freyhof & Özulug, 2014 | Acanthobrama thisbeae | 97573 |
| Semotilus thoreauianus Jordan, 1877 | Semotilus thoreauianus | 86798 |
| Phoxinellus thracicus Battalgil, 1942 | Leucaspius delineatus | 13696 |
| Alburnus timarensis Kuru, 1980 | Alburnus timarensis | 106151 |
| Hybopsis timpanogensis Cope, 1874 | Gila atraria | 27116 |
| Cyprinus tinca notha Walbaum, 1792 | Alburnoides bipunctatus | 13696 |
| Leuciscus tincella Valenciennes, 1844 | Algansea tincella | 58462 |
| Evarra tlahuacensis Meek, 1902 | Evarra tlahuacensis | 81264 |
| Macrhybopsis tomellerii Gilbert & Mayden, 2017 | Macrhybopsis tomellerii | 116539 |
| Cliola topeka Gilbert, 1884 | Miniellus topeka | 12965 |
| Leuciscus torgalensis Coelho, Bogutskaya, Rodrigues & Collares-Pereira, 1998 | Squalius torgalensis | 28035 |
| Chondrostoma toros Küçük, Turan, Güçlü, Mutlu & Çiftci, 2017 | Chondrostoma toros | 115538 |
| Cyprinus toxostoma Vallot, 1837 | Parachondrostoma toxostoma | 12965 |
| Chondrostoma toxostoma turiense Elvira, 1987 | Parachondrostoma turiense | 59043 |
| Chondrostoma toxostoma turiensis (non Elvira, 1987) | Parachondrostoma arrigonis | 13696 |
| Squalius transcaspiensis Berg, 1898 | Leuciscus latus | 1441 |
| Aspius transcaucasicus Warpachovski, 1896 | Leuciscus aspius | 13696 |
| Leuciscus trasimenicus Bonaparte, 1837 | Sarmarutilus rubilio | 13696 |
| Codoma trichroistia Jordan & Gilbert, 1878 | Cyprinella trichroistia | 10294 |
| Leuciscus tricolor Lortet, 1883 | Acanthobrama tricolor | 33021 |
| Moniana tristis Girard, 1856 | Miniellus topeka | 3814 |
| Cyprinus trivittatus Rafinesque, 1820 | Luxilus cornutus | 33021 |
| Notropis tropicus Hubbs & Miller, 1975 | Notropis tropicus | 52299 |
| Hybopsis tuditanus Cope, 1867 | Pimephales notatus | 33021 |
| Alburnoides turani Kaya, 2020 | Alburnoides turani | 124016 |
| Pseudophoxinus turani Küçük & Güçlü, 2014 | Pseudophoxinus turani | 96086 |
| Squalius turcicus (non De Filippi, 1865) | Squalius cephalus | 72459 |
| Squalius turcicus De Filippi, 1865 | Squalius turcicus | 72459 |
| Squalius turcicus var. platycephala Kamenskii, 1897 | Squalius cephalus | 13696 |
| Squalius turskyi Heckel, 1843 | Telestes turskyi | 13696 |
| Squalius tyberinus Bonaparte, 1841 | Squalius cephalus | 13696 |
| Heegerius typus Bonaparte, 1845 | Scardinius scardafa | 13696 |
| Squalius ukliva Heckel, 1843 | Telestes ukliva | 13696 |
| Leuciscus ulanus Günther, 1899 | Squalius ulanus | 31728 |
| Agosia umatilla Gilbert & Evermann, 1894 | Rhinichthys umatilla | 26282 |
| Cyprinus umbra Walbaum, 1792 | Leuciscus leuciscus | 13696 |
| Alburnus umbratilis Girard, 1856 | Lythrurus umbratilis | 12965 |
| Notropis umbratilis fasciolaris Gilbert, 1891 | Lythrurus fasciolaris | 54621 |
| Cyprinella umbrosa Girard, 1856 | Cyprinella lutrensis | 33021 |
| Ptychocheilus umpquae Snyder, 1908 | Ptychocheilus umpquae | 5723 |
| Notropis universitatis Evermann & Cockerell, 1909 | Luxilus cornutus | 33021 |
| Phenacobius uranops Cope, 1867 | Phenacobius uranops | 86798 |
| Notropis uranoscopus Suttkus, 1959 | Miniellus uranoscopus | 5723 |
| Abramis urmianus Günther, 1899 | Acanthobrama urmianus | 98499 |
| Cliola urostigma Jordan & Meek, 1884 | Cyprinella venusta | 33021 |
| Squalius valentinus Doadrio & Carmona, 2006 | Squalius valentinus | 72459 |
| Leuciscus vanensis Günther, 1868 | Alburnus tarichi | 33550 |
| Alburnoides varentsovi Bogutskaya & Coad, 2009 | Alburnoides varentsovi | 82592 |
| Chondrostoma variabile Yakovlev, 1870 | Chondrostoma variabile | 27763 |
| Phoxinus variabilis Warpachowski, 1887 | Rhynchocypris percnura | 13696 |
| Rhynchocypris variegata Günther, 1889 | Rhynchocypris lagowskii | 13397 |
| Phoxinus varius Perty, 1832 | Phoxinus phoxinus | 13696 |
| Rhinichthys velifer Gilbert, 1893 | Rhinichthys osculus | 81932 |
| Alburnoides velioglui Turan, Kaya, Ekmekçi & Doğan, 2014 | Alburnoides velioglui | 94737 |
| Cyprinella venusta Girard, 1856 | Cyprinella venusta | 86798 |
| Hesperoleucus venustus Snyder, 1913 | Hesperoleucus symmetricus | 33021 |
| Abramis versicolor DeKay, 1842 | Notemigonus crysoleucas | 33021 |
| Abramis vetula Heckel, 1836 | Abramis brama | 13696 |
| Ceratichthys vigilax Baird & Girard, 1853 | Pimephales vigilax | 12965 |
| Cyprinus vimba Linnaeus, 1758 | Vimba vimba | 13696 |
| Vimba vimba bergi Velikokhatko, 1940 | Vimba vimba | 13696 |
| Vimba vimba tenella abulyontis Battalgil, 1941 | Vimba vimba | 13696 |
| Vimba vimba tenella aphnitis Battalgil, 1941 | Vimba vimba | 13696 |
| Vimba vimba tenella istanbulensis Battalgil, 1941 | Vimba vimba | 13696 |
| Vimba vimba tenella karasuensis Tseeb & Delyanure, 1938 | Vimba vimba | 13696 |
| Vimba vimba tenella sapancae Battalgil, 1941 | Vimba vimba | 13696 |
| Vimba vimba vimba borysthenica Velikokhatko, 1940 | Vimba vimba | 13696 |
| Cyprinus vimpa Strøm, 1784 | Vimba vimba | 13696 |
| Leuciscus virgo (non Heckel, 1852) | Rutilus pigus | 59043 |
| Leuciscus virgo Heckel, 1852 | Rutilus virgo | 13696 |
| Alburnus vistonicus Freyhof & Kottelat, 2007 | Alburnus vistonicus | 75107 |
| Codoma vittata Girard, 1856 | Aztecula sallaei | 33021 |
| Hemitremia vittata Cope, 1870 | Hemitremia flammea | 33021 |
| Lepidomeda vittata Cope, 1874 | Lepidomeda vittata | 86798 |
| Exoglossum vittatum Rafinesque, 1818 | Exoglossum maxillingua | 33021 |
| Leuciscus vittatus DeKay, 1842 | Luxilus cornutus | 33021 |
| Siphateles vittatus Cope, 1883 | Siphateles bicolor | 33021 |
| Hybognathus volucellus Cope, 1865 | Notropis volucellus | 12965 |
| Notropis volucellus wickliffi Trautman, 1931 | Notropis wickliffi | 54621 |
| Alburnus volviticus Freyhof & Kottelat, 2007 | Alburnus volviticus | 75107 |
| Aspius vorax Heckel, 1843 | Leuciscus vorax | 89834 |
| Ptychocheilus vorax Girard, 1856 | Gila robusta | 33021 |
| Abramis vulgaris Mauduyt, 1849 | Abramis brama | 13696 |
| Aspius vulgaris Leiblein, 1853 | Leuciscus aspius | 13696 |
| Leuciscus vulgaris Fleming, 1828 | Leuciscus leuciscus | 13696 |
| Squalius vulgaris argenteus Walecki, 1863 | Leuciscus leuciscus | 13696 |
| Squalius vulgaris leptorhinus Walecki, 1863 | Leuciscus leuciscus | 13696 |
| Squalius vulgaris minor Walecki, 1863 | Leuciscus leuciscus | 13696 |
| Squalius vulgaris robustior Walecki, 1863 | Leuciscus leuciscus | 13696 |
| Leuciscus vulturius Costa, 1838 | Alburnus albidus | 13696 |
| Notropis waccamanus Fowler, 1942 | Notropis petersoni | 33021 |
| Idus waleckii Dybowski, 1869 | Leuciscus waleckii | 13397 |
| Leuciscus waleckii joholensis Kimura, 1934 | Leuciscus waleckii | 33021 |
| Leuciscus waleckii sinensis Rendahl, 1925 | Leuciscus waleckii | 13397 |
| Leuciscus waleckii tumensis Mori, 1930 | Leuciscus waleckii | 50600 |
| Leuciscus warpachowskii Schmidt, 1904 | Pseudaspius brandtii | 1441 |
| Oreoleuciscus warpachowskii Dulmaa, 1999 | Oreoleuciscus potanini | |
| Hybopsis watauga Jordan & Evermann, 1889 | Erimystax dissimilis | 33021 |
| Notropis welaka Evermann & Kendall, 1898 | Pteronotropis welaka | 52299 |
| Cyprinella whipplei Girard, 1856 | Cyprinella whipplei | 86798 |
| Notropis williami Fowler, 1945 | Notropis petersoni | 33021 |
| Chondrostoma willkommii Steindachner, 1866 | Pseudochondrostoma willkommii | 13696 |
| Hybopsis winchelli Girard, 1856 | Hybopsis winchelli | 47138 |
| Cyprinus wiresuba Güldenstädt, 1791 | Rutilus frisii | 13696 |
| Gardonus wyrozub Walecki, 1863 | Rutilus frisii | 13696 |
| Hybopsis x-punctata Hubbs & Crowe, 1956 | Erimystax x-punctatus | 3814 |
| Hybopsis x-punctata trautmani Hubbs & Crowe, 1956 | Erimystax x-punctatus | 33021 |
| Hybopsis xaenocephalus Jordan, 1877 | Notropis xaenocephalus | 12965 |
| Minnilus xaenurus Jordan, 1877 | Cyprinella xaenura | 12965 |
| Notropis xanthicara Minckley & Lytle, 1969 | Cyprinella xanthicara | 33021 |
| Cyprinus xanthopterus Vallot, 1837 | Rutilus rutilus | 13696 |
| Moroco yamamotis Jordan & Hubbs, 1925 | Rhynchocypris lagowskii | 81932 |
| Rutilus ylikiensis Economidis, 1991 | Leucos ylikiensis | 13696 |
| Alburnus zagrosensis Coad, 2009 | Alburnus zagrosensis | 82793 |
| Ceratichthys zanemus Jordan & Brayton, 1878 | Cyprinella zanema | 12965 |
| Pseudophoxinus zekayi Bogutskaya, Küçük & Atalay, 2006 | Pseudophoxinus zekayi | 78620 |
| Phoxinellus zeregi Heckel, 1843 | Pseudophoxinus zeregi | 12255 |
| Cyprinus zerta Leske, 1774 | Vimba vimba | 13696 |
| Clupea ziga Wulff, 1765 | Pelecus cultratus | 13696 |
| Alburnus zonatus Putnam, 1863 | Luxilus zonatus | 12965 |
| Luxilus zonistius Jordan, 1880 | Luxilus zonistius | 86798 |
| Leuciscus zunnensis Günther, 1868 | Gila robusta | 33021 |