| Scientific Name | Author | English Name |
|---|---|---|
| Adontosternarchus balaenops | (Cope, 1878) | |
| Adontosternarchus clarkae | Mago-Leccia, Lundberg & Baskin, 1985 | |
| Adontosternarchus devenanzii | Mago-Leccia, Lundberg & Baskin, 1985 | |
| Adontosternarchus duartei | de Santana & Vari, 2012 | |
| Adontosternarchus nebulosus | Lundberg & Cox Fernandes, 2007 | |
| Adontosternarchus sachsi | (Peters, 1877) | |
| Apteronotus acidops | Triques, 2011 | |
| Apteronotus albifrons | (Linnaeus, 1766) | Black ghost |
| Apteronotus anu | de Santana & Vari, 2013 | |
| Apteronotus apurensis | Fernández-Yépez, 1968 | |
| Apteronotus baniwa | de Santana & Vari, 2013 | |
| Apteronotus bonapartii | (Castelnau, 1855) | |
| Apteronotus brasiliensis | (Reinhardt, 1852) | |
| Apteronotus camposdapazi | de Santana & Lehmann A., 2006 | |
| Apteronotus caudimaculosus | de Santana, 2003 | |
| Apteronotus cuchillejo | (Schultz, 1949) | |
| Apteronotus cuchillo | Schultz, 1949 | |
| Apteronotus curvioperculata | (Godoy, 1968) | |
| Apteronotus ellisi | (Alonso de Arámburu, 1957) | |
| Apteronotus eschmeyeri | de Santana, Maldonado-Ocampo, Severi & Mendes, 2004 | |
| Apteronotus ferrarisi | de Santana & Vari, 2013 | |
| Apteronotus galvisi | de Santana, Maldonado-Ocampo & Crampton, 2007 | |
| Apteronotus jurubidae | (Fowler, 1944) | |
| Apteronotus leptorhynchus | (Ellis, 1912) | |
| Apteronotus lindalvae | de Santana & Cox Fernandes, 2012 | |
| Apteronotus macrolepis | (Steindachner, 1881) | |
| Apteronotus macrostomus | (Fowler, 1943) | |
| Apteronotus magdalenensis | (Miles, 1945) | |
| Apteronotus magoi | de Santana, Castillo & Taphorn, 2006 | |
| Apteronotus mariae | (Eigenmann & Fisher, 1914) | |
| Apteronotus milesi | de Santana & Maldonado-Ocampo, 2005 | |
| Apteronotus pemon | de Santana & Vari, 2013 | |
| Apteronotus rostratus | (Meek & Hildebrand, 1913) | |
| Apteronotus spurrellii | (Regan, 1914) | |
| Compsaraia compsa | (Mago-Leccia, 1994) | |
| Compsaraia iara | Bernt & Albert, 2017 | |
| Compsaraia samueli | Albert & Crampton, 2009 | Pelican Knifefish |
| Megadontognathus cuyuniensis | Mago-Leccia, 1994 | |
| Megadontognathus kaitukaensis | Campos-da-paz, 1999 | |
| Orthosternarchus tamandua | (Boulenger, 1898) | |
| Parapteronotus hasemani | (Ellis, 1913) | |
| Pariosternarchus amazonensis | Albert & Crampton, 2006 | |
| Platyurosternarchus crypticus | de Santana & Vari, 2009 | |
| Platyurosternarchus macrostoma | (Günther, 1870) | |
| Porotergus duende | de Santana & Crampton, 2010 | |
| Porotergus gimbeli | Ellis, 1912 | |
| Porotergus gymnotus | Ellis, 1912 | |
| Sternarchella calhamazon | Lundberg, Coz Fernandes, Campos da Paz & Sullivan, 2013 | |
| Sternarchella duccis | (Lundberg, Cox Fernandes & Albert, 1996) | |
| Sternarchella orinoco | Mago-Leccia, 1994 | |
| Sternarchella orthos | Mago-Leccia, 1994 | |
| Sternarchella patriciae | Evans, Crampton & Albert, 2017 | |
| Sternarchella raptor | (Lundberg, Cox Fernandes & Albert, 1996) | |
| Sternarchella rex | Evans, Crampton & Albert, 2017 | |
| Sternarchella schotti | (Steindachner, 1868) | |
| Sternarchella sima | Starks, 1913 | |
| Sternarchogiton labiatus | de Santana & Crampton, 2007 | |
| Sternarchogiton nattereri | (Steindachner, 1868) | |
| Sternarchogiton porcinum | Eigenmann & Allen, 1942 | |
| Sternarchogiton preto | de Santana & Crampton, 2007 | |
| Sternarchogiton zuanoni | de Santana & Vari, 2010 | |
| Sternarchorhamphus muelleri | (Steindachner, 1881) | |
| Sternarchorhynchus axelrodi | de Santana & Vari, 2010 | Axelrod's tube-snouted ghost knifefish |
| Sternarchorhynchus britskii | Campos-da-Paz, 2000 | Britski's tube-snouted ghost knifefish |
| Sternarchorhynchus caboclo | de Santana & Nogueira, 2006 | Cabocolo tube-snouted ghost knifefish |
| Sternarchorhynchus chaoi | de Santana & Vari, 2010 | Chao's tube-snouted ghost knifefish |
| Sternarchorhynchus cramptoni | de Santana & Vari, 2010 | Crampton's tube-snouted ghost knifefish |
| Sternarchorhynchus curumim | de Santana & Crampton, 2006 | Curumim tube-snouted ghost knifefish |
| Sternarchorhynchus curvirostris | (Boulenger, 1887) | |
| Sternarchorhynchus freemani | de Santana & Vari, 2010 | Freeman's tube-snouted ghost knifefish |
| Sternarchorhynchus galibi | de Santana & Vari, 2010 | Galibi tube-snouted ghost knifefish |
| Sternarchorhynchus gnomus | de Santana & Taphorn, 2006 | Gnomus tube-snouted ghost knifefish |
| Sternarchorhynchus goeldii | de Santana & Vari, 2010 | Goeldi's tube-snouted ghost knifefish |
| Sternarchorhynchus hagedornae | de Santana & Vari, 2010 | Hagedorn's tube-snouted ghost knifefish |
| Sternarchorhynchus higuchii | de Santana & Vari, 2010 | Higuchi's tube-snouted ghost knifefish |
| Sternarchorhynchus inpai | de Santana & Vari, 2010 | Inpa tube-snouted ghost knifefish |
| Sternarchorhynchus jaimei | de Santana & Vari, 2010 | Jamei's tube-snouted ghost knifefish |
| Sternarchorhynchus kokraimoro | de Santana & Vari, 2010 | Kokraimoro tube-snouted ghost knifefish |
| Sternarchorhynchus mareikeae | de Santana & Vari, 2010 | Mareike's tube-snouted ghost knifefish |
| Sternarchorhynchus marreroi | de Santana & Vari, 2010 | Marrero's tube-snouted ghost knifefish |
| Sternarchorhynchus mendesi | de Santana & Vari, 2010 | Mendes' tube-snouted ghost knifefish |
| Sternarchorhynchus mesensis | Campos-da-Paz, 2000 | Mesensis tube-snouted ghost knifefish |
| Sternarchorhynchus montanus | de Santana & Vari, 2010 | Montanus tube-snouted ghost knifefish |
| Sternarchorhynchus mormyrus | (Steindachner, 1868) | Mormyrus tube-snouted ghost knifefish |
| Sternarchorhynchus oxyrhynchus | (Müller & Troschel, 1849) | Oxyrhynchus tube-snouted ghost knifefish |
| Sternarchorhynchus retzeri | de Santana & Vari, 2010 | Retzer's tube-snouted ghost knifefish |
| Sternarchorhynchus roseni | Mago-Leccia, 1994 | Rosen's tube-snouted ghost knifefish |
| Sternarchorhynchus schwassmanni | de Santana & Vari, 2010 | |
| Sternarchorhynchus severii | de Santana & Nogueira, 2006 | Severi's tube-snouted ghost knifefish |
| Sternarchorhynchus starksi | de Santana & Vari, 2010 | Stark's tube-snouted ghost knifefish |
| Sternarchorhynchus stewarti | de Santana & Vari, 2010 | Stewart's tube-snouted ghost knifefish |
| Sternarchorhynchus taphorni | de Santana & Vari, 2010 | Taphorn's tube-snouted ghost knifefish |
| Sternarchorhynchus villasboasi | de Santana & Vari, 2010 | Villasboas' tube-snouted ghost knifefish |
| Sternarchorhynchus yepezi | de Santana & Vari, 2010 | Yepez' tube-snouted ghost knifefish |
| Tembeassu marauna | Triques, 1998 |