| Nominal Species (n = 121) | Present allocation (n = 96) | Ref. |
|---|---|---|
| Opistognathus adelus Smith-Vaniz, 2010 | Opistognathus adelus | 85161 |
| Opistognathus afer Smith-Vaniz, 2010 | Opistognathus afer | 85161 |
| Opistognathus albicaudatus Smith-Vaniz, 2011 | Opistognathus albicaudatus | 88069 |
| Opistognathus albomaculatus Smith-Vaniz, 2023 | Opistognathus albomaculatus | 128653 |
| Opistognathus alleni Smith-Vaniz, 2004 | Opistognathus alleni | 76827 |
| Lonchopisthus ancistrus Smith-Vaniz & Walsh, 2017 | Lonchopisthus ancistrus | 116588 |
| Opistognathus asper Smith-Vaniz, 2023 | Opistognathus asper | 128653 |
| Gnathypops aurifrons Jordan & Thompson, 1905 | Opistognathus aurifrons | 13628 |
| Opistognathus aurolineatus Smith-Vaniz, 2023 | Opistognathus aurolineatus | 128653 |
| Opistognathus bathyphilus Smith-Vaniz, 2023 | Opistognathus bathyphilus | 128653 |
| Opistognathus biporus Smith-Vaniz, 2023 | Opistognathus biporus | 128653 |
| Opistognathus brasiliensis Smith-Vaniz, 1997 | Opistognathus brasiliensis | 26893 |
| Opistognathus brochus Bussing & Lavenberg, 2003 | Opistognathus brochus | 75633 |
| Merogymnoides carpentariae Whitley, 1966 | Opistognathus macrolepis | 75154 |
| Opistognathus castelnaui Bleeker, 1860 | Opistognathus castelnaui | 6192 |
| Opistognathus castelnaui (non Bleeker, 1860) | Opistognathus cyanospilotus | 81517 |
| Opistognathus castelnaui (non Bleeker, 1860) | Opistognathus nigromarginatus | 81517 |
| Opistognathus challenger Smith-Vaniz, 2023 | Opistognathus challenger | 128653 |
| Upsilonognathus chaplini Fowler, 1946 | Opistognathus whitehursti | 26893 |
| Opistognathus crassus Smith-Vaniz, 2010 | Opistognathus crassus | 128653 |
| Opistognathus cuvieri (non Valenciennes, 1836) | Opistognathus robinsi | 26893 |
| Opisthognathus cuvierii Valenciennes, 1840 | Opistognathus nigromarginatus | 92135 |
| Opistognathus cuvierii Valenciennes, 1836 | Opistognathus cuvierii | 26282 |
| Opistognathus cyanospilotus Smith-Vaniz, 2009 | Opistognathus cyanospilotus | 81517 |
| Opistognathus darwiniensis Macleay, 1878 | Opistognathus darwiniensis | 36661 |
| Stalix davidsheni Klausewitz, 1985 | Stalix davidsheni | 12541 |
| Opistognathus decorus Smith-Vaniz & Yoshino, 1985 | Opistognathus decorus | 128653 |
| Gnathypops dendritica Jordan & Richardson, 1908 | Opistognathus dendriticus | 128653 |
| Stalix dicra Smith-Vaniz, 1989 | Stalix dicra | 40511 |
| Opistognathus dipharus Smith-Vaniz, 2010 | Opistognathus dipharus | 85161 |
| Opistognathus elizabethensis Smith-Vaniz, 2004 | Opistognathus elizabethensis | 76827 |
| Opistognathus ensiferus Smith-Vaniz, 2016 | Opistognathus ensiferus | 128946 |
| Opistognathus erdmanni Smith-Vaniz, 2023 | Opistognathus erdmanni | 128653 |
| Stalix eremia Smith-Vaniz, 1989 | Stalix eremia | 40511 |
| Gnathypops evermanni Jordan & Snyder, 1902 | Opistognathus evermanni | 12701 |
| Merogymnus eximius Ogilby, 1908 | Opistognathus eximius | 128653 |
| Opisthognathus fasciatum Longley & Hildebrand, 1940 | Opistognathus macrognathus | 26893 |
| Opistognathus fenmutis Acero P. & Franke, 1993 | Opistognathus fenmutis | 13250 |
| Stalix flavida Smith-Vaniz, 1989 | Stalix flavida | 35862 |
| Opistognathus fossoris Bussing & Lavenberg, 2003 | Opistognathus fossoris | 75633 |
| Opistognathus galapagensis Allen & Robertson, 1991 | Opistognathus galapagensis | 11482 |
| Opistognathus gilberti Böhlke, 1967 | Opistognathus gilberti | 5521 |
| Lonchopisthus higmani Mead, 1959 | Lonchopisthus higmani | 13628 |
| Stalix histrio Jordan & Snyder, 1902 | Stalix histrio | 559 |
| Opistognathus hongkongiensis Chan, 1968 | Opistognathus hongkongiensis | 36648 |
| Gnathypops hopkinsi Jordan & Snyder, 1902 | Opistognathus hopkinsi | 12701 |
| Stalix immaculata Xu & Zhan, 1980 | Stalix immaculata | 40511 |
| Opistognathus inornatus Ramsay & Ogilby, 1887 | Opistognathus inornatus | 36661 |
| Gnathypops iyonis Jordan & Thompson, 1913 | Opistognathus iyonis | 26282 |
| Opistognathus jacksoniensis Macleay, 1881 | Opistognathus jacksoniensis | 9002 |
| Tandya latitabunda Whitley, 1937 | Opistognathus latitabundus | 26282 |
| Lonchistium lemur Myers, 1935 | Lonchopisthus lemur | 13628 |
| Opistognathus leprocarus Smith-Vaniz, 1997 | Opistognathus leprocarus | 26893 |
| Lonchopisthus lindneri Ginsburg, 1942 | Lonchopisthus micrognathus | 26893 |
| Opistognathus liturus Smith-Vaniz & Yoshino, 1985 | Opistognathus liturus | 12701 |
| Opistognathus lonchurus Jordan & Gilbert, 1882 | Opistognathus lonchurus | 51183 |
| Opistognathus longinaris Smith-Vaniz, 2010 | Opistognathus longinaris | 85161 |
| Opistognathus macrognathus Poey, 1860 | Opistognathus macrognathus | 7251 |
| Opistognathus macrognathus (non Poey, 1860) | Opistognathus robinsi | 26893 |
| Opistognathus macrolepis Peters, 1866 | Opistognathus macrolepis | 40511 |
| Opisthognathus macrops Poey, 1860 | Opistognathus macrognathus | 26893 |
| Opistognathus macrostomus Rüppell, 1830 | Opistognathus nigromarginatus | |
| Opistognathus margaretae Smith-Vaniz, 1983 | Opistognathus margaretae | 5468 |
| Opistognathus maxillosus Poey, 1860 | Opistognathus maxillosus | 7251 |
| Lonchopisthus meadi Menezes & Lima de Figueiredo, 1971 | Lonchopisthus lemur | 26893 |
| Opistognathus megalepis Smith-Vaniz, 1972 | Opistognathus megalepis | 26893 |
| Opisthognathus megastoma Günther, 1860 | Opistognathus macrognathus | 26893 |
| Opistognathus melachasme Smith-Vaniz, 1972 | Opistognathus melachasme | 7251 |
| Opistognathus melachasme (non Smith-Vaniz, 1972) | Opistognathus nothus | 26893 |
| Opistognathus mexicanus Allen & Robertson, 1991 | Opistognathus mexicanus | 11482 |
| Opisthognathus micrognathus Poey, 1860 | Lonchopisthus micrognathus | 13628 |
| Gnathypops moenensis Popta, 1922 | Stalix moenensis | 40966 |
| Opisthognathus muscatensis (non Boulenger, 1888) | Opistognathus dipharus | 128653 |
| Opistognathus muscatensis Boulenger, 1888 | Opistognathus muscatensis | 5468 |
| Gnathypops mystacinus Jordan, 1884 | Opistognathus lonchurus | 26893 |
| Opistognathus nigromarginatus Rüppell, 1830 | Opistognathus nigromarginatus | 5468 |
| Opistognathus nothus Smith-Vaniz, 1997 | Opistognathus nothus | 26893 |
| Stalix novikovi Prokofiev, 2015 | Stalix novikovi | 129448 |
| Opisthognatus ocellatus Ehrenberg, 1836 | Opistognathus nigromarginatus | 86697 |
| Opistognathus ocellicaudatus Shinohara, 2021 | Opistognathus ocellicaudatus | 128653 |
| Stalix omanensis Norman, 1939 | Stalix omanensis | 12965 |
| Opistognathus panamaensis Allen & Robertson, 1991 | Opistognathus panamaensis | 11482 |
| Opistognathus papuensis Bleeker, 1868 | Opistognathus papuensis | 2334 |
| Opistognathus pardus Smith-Vaniz, Bineesh & Akhilesh, 2012 | Opistognathus pardus | 93143 |
| Opistognathus punctatus Peters, 1869 | Opistognathus punctatus | 7419 |
| Anoptoplacus pygmaeus Smith-Vaniz, 2017 | Anoptoplacus pygmaeus | 114925 |
| Opistognathus randalli Smith-Vaniz, 2009 | Opistognathus randalli | 81517 |
| Opistognathus reticeps Smith-Vaniz, 2004 | Opistognathus reticeps | 76827 |
| Tandya reticulata McKay, 1969 | Opistognathus reticulatus | 35911 |
| Opistognathus rhomaleus Jordan & Gilbert, 1882 | Opistognathus rhomaleus | 11482 |
| Opistognathus robinsi Smith-Vaniz, 1997 | Opistognathus robinsi | 26893 |
| Gnathypops rosenbergi annulata Eibl-Eibesfeldt & Klausewitz, 1961 | Opistognathus rosenbergii | 128653 |
| Opistognathus rosenbergii Bleeker, 1856 | Opistognathus rosenbergii | 40966 |
| Opistognathus rosenblatti Allen & Robertson, 1991 | Opistognathus rosenblatti | 11482 |
| Opistognathus rufilineatus Smith-Vaniz & Allen, 2007 | Opistognathus rufilineatus | 75148 |
| Opistognathus scaphiurus Goode & Bean, 1882 | Opistognathus macrognathus | 31982 |
| Opistognathus schrieri Smith-Vaniz, 2017 | Opistognathus schrieri | 114925 |
| Gnathypops scops Jenkins & Evermann, 1889 | Opistognathus scops | 12965 |
| Opisthognathus scops panamensis Fowler, 1944 | Opistognathus scops | 40966 |
| Opistognathus seminudus Smith-Vaniz, 2004 | Opistognathus seminudus | 76827 |
| Stalix sheni Smith-Vaniz, 1989 | Stalix sheni | 36648 |
| Opistognathus signatus Smith-Vaniz, 1997 | Opistognathus signatus | 26893 |
| Opistognathus simus Smith-Vaniz, 2010 | Opistognathus simus | 85161 |
| Lonchopisthus sinuscalifornicus Castro-Aguirre & Villavicencio-Garayzar, 1988 | Lonchopisthus sinuscalifornicus | 11482 |
| Opistognathus smithvanizi Bussing & Lavenberg, 2003 | Opistognathus smithvanizi | 75633 |
| Opistognathus solorensis (non Bleeker, 1853) | Opistognathus cyanospilotus | 81517 |
| Opistognathus solorensis Bleeker, 1853 | Opistognathus solorensis | 36648 |
| Opistognathus solorensis (non Bleeker, 1853) | Opistognathus variabilis | 81517 |
| Opistognathus sonneratii Cuvier, 1816 | Opistognathus nigromarginatus | 40966 |
| Opistognathus stigmosus Smith-Vaniz, 2004 | Opistognathus stigmosus | 76827 |
| Opisthognathus suluensis Herre, 1933 | Opistognathus castelnaui | 12701 |
| Opistognathus thionyi Smith-Vaniz, Tornabene & Macieira, 2018 | Opistognathus thionyi | 128653 |
| Stalix toyoshio Shinohara, 1999 | Stalix toyoshio | 35862 |
| Opistognathus trimaculatus Hiramatsu & Endo, 2013 | Opistognathus trimaculatus | 128653 |
| Lonchopisthus vanderbilti Mowbray, 1928 | Lonchopisthus micrognathus | 26282 |
| Opistognathus variabilis Smith-Vaniz, 2009 | Opistognathus variabilis | 81517 |
| Opistognathus verecundus Smith-Vaniz, 2004 | Opistognathus verecundus | 76827 |
| Opisthognathus versluysi Weber, 1913 | Stalix versluysi | 40966 |
| Opistognathus vicinus Smith-Vaniz, Tornabene & Macieira, 2018 | Opistognathus vicinus | 129348 |
| Opistognathus walkeri Bussing & Lavenberg, 2003 | Opistognathus walkeri | 75633 |
| Gnathypops whitehursti Longley, 1927 | Opistognathus whitehursti | 36656 |