| Nominal Species (n = 316) | Present allocation (n = 274) | Ref. |
|---|---|---|
| Ituglanis agreste Lima, Neves & Campos-Paiva, 2013 | Ituglanis agreste | 94155 |
| Trichomycterus aguarague Fernández & Osinaga, 2006 | Trichomycterus aguarague | 57840 |
| Trichomycterus albinotatus Costa, 1992 | Trichomycterus albinotatus | 39970 |
| Apomatoceros alleni Eigenmann, 1922 | Apomatoceros alleni | 39970 |
| Pygidium alternatum Eigenmann, 1917 | Trichomycterus alternatus | 43677 |
| Ochmacanthus alternus Myers, 1927 | Ochmacanthus alternus | 39970 |
| Pygidium alterum Marini, Nichols & La Monte, 1933 | Trichomycterus alterus | 43677 |
| Ammoglanis amapaensis Mattos, Costa & Gama, 2008 | Ammoglanis amapaensis | 78711 |
| Trichomycterus amazonicus Steindachner, 1882 | Ituglanis amazonicus | 36656 |
| Pygidianops amphioxus de Pinna & Kirovsky, 2011 | Pygidianops amphioxus | 87858 |
| Glanapteryx anguilla Myers, 1927 | Glanapteryx anguilla | 39970 |
| Pygidium angustirostris Devincenzi, 1942 | Scleronema angustirostre | 58032 |
| Trichomycterus anhanga Dutra, Wosiacki & de Pinna, 2012 | Trichomycterus anhanga | 91084 |
| Homodiaetus anisitsi Eigenmann & Ward, 1907 | Homodiaetus anisitsi | 39970 |
| Acanthopoma annectens Lütken, 1892 | Acanthopoma annectens | 39970 |
| Ituglanis apteryx Datovo, 2014 | Ituglanis apteryx | 95610 |
| Trichomycterus areolatus Valenciennes, 1846 | Trichomycterus areolatus | 39970 |
| Trichomycterus argos Lezama, Triques & Santos, 2012 | Trichomycterus argos | 90333 |
| Pygidium arleoi Fernández-Yépez, 1972 | Trichomycterus arleoi | 26282 |
| Pygidium atochae Allen, 1942 | Trichomycterus atochae | 86697 |
| Pygidium atochae (non Allen, 1942) | Trichomycterus rivulatus | 58750 |
| Typhlobelus auriculatus de Pinna & Zuanon, 2013 | Typhlobelus auriculatus | 94274 |
| Trichomycterus auroguttatus Costa, 1992 | Trichomycterus auroguttatus | 39970 |
| Ituglanis australis Datovo & de Pinna, 2014 | Ituglanis australis | 95054 |
| Trichomycterus bahianus Costa, 1992 | Trichomycterus bahianus | 39970 |
| Trichomycterus balios Ferrer & Malabarba, 2013 | Trichomycterus balios | 93814 |
| Trichomycterus ballesterosi Ardila Rodríguez, 2011 | Trichomycterus ballesterosi | 87661 |
| Vandellia balzanii Perugia, 1897 | Vandellia cirrhosa | 39970 |
| Ituglanis bambui Bichuette & Trajano, 2004 | Ituglanis bambui | 55401 |
| Homodiaetus banguela Koch, 2002 | Homodiaetus banguela | 39970 |
| Pygidium banneaui Eigenmann, 1912 | Trichomycterus banneaui | 26282 |
| Pygidium banneaui maracaiboensis Schultz, 1944 | Trichomycterus maracaiboensis | 26282 |
| Microcambeva barbata Costa & Bockmann, 1994 | Microcambeva barbata | 39970 |
| Trichomycterus barbatula Valenciennes, 1846 | Trichomycterus rivulatus | 39970 |
| Pygidium barbouri Eigenmann, 1911 | Trichomycterus barbouri | 26282 |
| Vandellia beccarii Di Caporiacco, 1935 | Vandellia beccarii | 39970 |
| Trichomycterus belensis Fernández & Vari, 2002 | Trichomycterus belensis | 43677 |
| Branchioica bertoni Eigenmann, 1917 | Paravandellia oxyptera | 39970 |
| Pygidium bogotense Eigenmann, 1912 | Trichomycterus bogotensis | 58032 |
| Ituglanis boitata Ferrer, Donin & Malabarba, 2015 | Ituglanis boitata | 104908 |
| Pygidium bomboizanum Tortonese, 1942 | Trichomycterus bomboizanus | 80565 |
| Acanthopoma bondi Myers, 1942 | Schultzichthys bondi | 39970 |
| Trichomycterus borellii Boulenger, 1897 | Trichomycterus borellii | 39970 |
| Silvinichthys bortayro Fernández & de Pinna, 2005 | Silvinichthys bortayro | 55738 |
| Listrura boticario de Pinna & Wosiacki, 2002 | Listrura boticario | 39970 |
| Pygidium boylei Nichols, 1956 | Trichomycterus boylei | 39970 |
| Trichomycterus brachykechenos Ferrer & Malabarba, 2013 | Trichomycterus brachykechenos | 93814 |
| Trichomycterus brasiliensis Lütken, 1874 | Trichomycterus brasiliensis | 39970 |
| Trichomycterus brasiliensis itatiayae Miranda Ribeiro, 1906 | Trichomycterus itatiayae | 26282 |
| Trichomycterus brasiliensis tristis Lütken, 1875 | Trichomycterus brasiliensis | 39970 |
| Tridens brevis Eigenmann & Eigenmann, 1889 | Tridensimilis brevis | 26282 |
| Trichomycterus brunoi Barbosa & Costa, 2010 | Trichomycterus brunoi | 84023 |
| Hatcheria bullocki Fowler, 1940 | Bullockia maldonadoi | 39970 |
| Pygidium burmeisteri Berg, 1895 | Hatcheria macraei | 39970 |
| Trichomycterus cachiraensis Ardila Rodríguez, 2008 | Trichomycterus cachiraensis | 83636 |
| Tridentopsis cahuali Azpelicueta, 1990 | Tridentopsis cahuali | 39970 |
| Ituglanis cahyensis Sarmento-Soares, Martins-Pinheiro, Aranda & Chamon, 2006 | Ituglanis cahyensis | 57703 |
| Trichomycterus caipora Lima, Lazzarotto & Costa, 2008 | Trichomycterus caipora | 79019 |
| Pygidium caliense Eigenmann, 1912 | Trichomycterus caliensis | 26282 |
| Eremophilus camposi Miranda Ribeiro, 1957 | Listrura camposi | 26282 |
| Eremophilus candidus Miranda Ribeiro, 1949 | Trichomycterus candidus | 39970 |
| Trichomycterus castroi de Pinna, 1992 | Trichomycterus castroi | 26696 |
| Trichomycterus catamarcensis Fernández & Vari, 2000 | Trichomycterus catamarcensis | 37038 |
| Trichomycterus caudofasciatus Alencar & Costa, 2004 | Trichomycterus caudofasciatus | 53352 |
| Trichomycterus celsae Lasso & Provenzano, 2003 | Trichomycterus celsae | 78652 |
| Trichomycterus chaberti Durand, 1968 | Trichomycterus chaberti | 27297 |
| Pygidium chapmani Eigenmann, 1912 | Trichomycterus chapmani | 26282 |
| Pygidium chiltoni Eigenmann, 1928 | Trichomycterus chiltoni | 39970 |
| Trichomycterus chungaraensis Arratia, 1983 | Trichomycterus chungaraensis | 39970 |
| Vandellia cirrhosa Valenciennes, 1846 | Vandellia cirrhosa | 39970 |
| Trichomycterus claudiae Barbosa & Costa, 2010 | Trichomycterus claudiae | 84023 |
| Trichogenes claviger de Pinna, Helmer, Britski & Nunes, 2010 | Trichogenes claviger | 85858 |
| Trichomycterus concolor Costa, 1992 | Trichomycterus concolor | 39970 |
| Pygidium conradi Eigenmann, 1912 | Trichomycterus conradi | 2037 |
| Trichomycterus corduvensis Weyenbergh, 1877 | Trichomycterus corduvensis | 39970 |
| Listrura costai Villa-Verde, Lazzarotto & Lima, 2012 | Listrura costai | 91744 |
| Trichomycterus crassicaudatus Wosiacki & de Pinna, 2008 | Trichomycterus crassicaudatus | 75785 |
| Pygidianops cuao Schaefer, Provenzano, de Pinna & Baskin, 2005 | Pygidianops cuao | 56682 |
| Trichomycterus cubataonis Bizerril, 1994 | Trichomycterus zonatus | 58032 |
| Trichomycterus dali Rizzato, Costa, Trajano & Bichuette, 2011 | Trichomycterus dali | 87887 |
| Pygidium davisi Haseman, 1911 | Trichomycterus davisi | 26282 |
| Listrura depinnai Villa-Verde, Ferrer & Malabarba, 2014 | Listrura depinnai | 94748 |
| Urinophilus diabolicus Myers, 1927 | Plectrochilus diabolicus | 39970 |
| Trichomycterus diabolus Bockmann, Casatti & de Pinna, 2004 | Trichomycterus diabolus | 55400 |
| Ammoglanis diaphanus Costa, 1994 | Ammoglanis diaphanus | 26653 |
| Trichomycterus diatropoporos Ferrer & Malabarba, 2013 | Trichomycterus diatropoporos | 93814 |
| Pygidium dispar Tschudi, 1846 | Trichomycterus dispar | 26282 |
| Pygidium dorsostriatum Eigenmann, 1917 | Trichomycterus dorsostriatum | 39970 |
| Microcambeva draco Mattos & Lima, 2010 | Microcambeva draco | 85561 |
| Trichomycterus duellmani Arratia & Menu-Marque, 1984 | Trichomycterus duellmani | 39970 |
| Megalocentor echthrus de Pinna & Britski, 1991 | Megalocentor echthrus | 28874 |
| Trichomycterus eichorniarum Miranda Ribeiro, 1912 | Ituglanis eichorniarum | 26282 |
| Pygidianops eigenmanni Myers, 1944 | Pygidianops eigenmanni | 39970 |
| Trichomycterus eigenmanni Boulenger, 1898 | Trichomycterus rivulatus | 26282 |
| Pygidium emanueli emanueli Schultz, 1944 | Trichomycterus emanueli | 26282 |
| Pygidium emanueli motatanensis Schultz, 1944 | Trichomycterus motatanensis | 26282 |
| Ituglanis epikarsticus Bichuette & Trajano, 2004 | Ituglanis epikarsticus | 55401 |
| Urinophilus erythrurus Eigenmann, 1922 | Vandellia cirrhosa | 39970 |
| Pygidium fassli Steindachner, 1915 | Trichomycterus fassli | 26282 |
| Ochmacanthus flabelliferus Eigenmann, 1912 | Ochmacanthus flabelliferus | 6868 |
| Pygidium florense Miranda Ribeiro, 1943 | Trichomycterus alternatus | 58032 |
| Trichomycterus fuliginosus Barbosa & Costa, 2010 | Trichomycterus fuliginosus | 84023 |
| Pygidium gabrieli Myers, 1926 | Trichomycterus gabrieli | 26282 |
| Trichomycterus gasparinii Barbosa, 2013 | Trichomycterus gasparinii | 94725 |
| Malacoglanis gelatinosus Myers & Weitzman, 1966 | Malacoglanis gelatinosus | 39970 |
| Vandellia gigantea Cornalia, 1849 | Vandellia cirrhosa | 39970 |
| Trichomycterus giganteus Lima & Costa, 2004 | Trichomycterus giganteus | 54465 |
| Trichomycterus goeldii Boulenger, 1896 | Trichomycterus goeldii | 39970 |
| Trichomycterus gorgona Fernández & Schaefer, 2005 | Trichomycterus gorgona | 55665 |
| Stauroglanis gouldingi de Pinna, 1989 | Stauroglanis gouldingi | 39970 |
| Pygidium gracilior Eigenmann, 1912 | Ituglanis gracilior | 2037 |
| Schultzichthys gracilis Dahl, 1960 | Schultzichthys gracilis | 39970 |
| Trichomycterus gracilis Valenciennes, 1846 | Trichomycterus rivulatus | 39970 |
| Homodiaetus graciosa Koch, 2002 | Homodiaetus graciosa | 39970 |
| Typhlobelus guacamaya Schaefer, Provenzano, de Pinna & Baskin, 2005 | Typhlobelus guacamaya | 56682 |
| Silvinichthys gualcamayo Fernández, Sanabria & Quiroga, 2013 | Silvinichthys gualcamayo | 95056 |
| Trichomycterus guaraquessaba Wosiacki, 2005 | Trichomycterus guaraquessaba | 56678 |
| Homodiaetus haemomyzon Myers, 1942 | Pseudostegophilus haemomyzon | 39970 |
| Pygidium hasemani Eigenmann, 1914 | Trichomycterus hasemani | 26282 |
| Vandellia hasemani Eigenmann, 1918 | Plectrochilus machadoi | 39970 |
| Vandellia hematophaga Guimarães, 1935 | Paravandellia oxyptera | 39970 |
| Trichomycterus herberti Miranda Ribeiro, 1940 | Ituglanis herberti | 26282 |
| Pygidium heterodontum Eigenmann, 1917 | Trichomycterus heterodontus | 26282 |
| Silvinichthys huachi Fernández, Sanabria, Quiroga & Vari, 2014 | Silvinichthys huachi | 95056 |
| Trichomycterus hualco Fernández & Vari, 2009 | Trichomycterus hualco | 80457 |
| Pleurophysus hydrostaticus Miranda Ribeiro, 1918 | Paravandellia oxyptera | 39970 |
| Trichomycterus igobi Wosiacki & de Pinna, 2008 | Trichomycterus igobi | 75005 |
| Pygidium iheringi Eigenmann, 1917 | Trichomycterus iheringi | 26282 |
| Pygidium immaculatum Eigenmann & Eigenmann, 1889 | Trichomycterus immaculatus | 26282 |
| Ituglanis ina Wosiacki, Dutra & Mendonça, 2012 | Ituglanis ina | 91742 |
| Trichomycterus incae Valenciennes, 1846 | Trichomycterus rivulatus | 39970 |
| Stegophilus insidiosus Reinhardt, 1859 | Stegophilus insidiosus | 39970 |
| Stegophilus intermedius Eigenmann & Eigenmann, 1889 | Henonemus intermedius | 39970 |
| Trichomycterus itacambirussu Triques & Vono, 2004 | Trichomycterus itacambirussu | 52473 |
| Trichomycterus itacarambiensis Trajano & de Pinna, 1996 | Trichomycterus itacarambiensis | 27299 |
| Trichomycterus jacupiranga Wosiacki & Oyakawa, 2005 | Trichomycterus jacupiranga | 56907 |
| Trichomycterus jequitinhonhae Triques & Vono, 2004 | Trichomycterus jequitinhonhae | 52473 |
| Pygidium johnsoni Fowler, 1932 | Trichomycterus johnsoni | 26282 |
| Trichomycterus knerii Steindachner, 1882 | Trichomycterus knerii | 39970 |
| Trichomycterus landinga Triques & Vono, 2004 | Trichomycterus landinga | 52473 |
| Trichomycterus laticeps Kner, 1863 | Ituglanis laticeps | 26282 |
| Pygidium latidens Eigenmann, 1917 | Trichomycterus latidens | 26282 |
| Pygidium latistriatum Eigenmann, 1917 | Trichomycterus latistriatus | 26282 |
| Trichomycterus laucaensis Arratia, 1983 | Trichomycterus laucaensis | 39970 |
| Silvinichthys leoncitensis Fernández, Dominino, Brancolini & Baigún, 2011 | Silvinichthys leoncitensis | 88804 |
| Trichomycterus lewi Lasso & Provenzano, 2003 | Trichomycterus lewi | 78652 |
| Copionodon lianae Campanario & de Pinna, 2000 | Copionodon lianae | 45131 |
| Trichomycterus longibarbatus Costa, 1992 | Trichomycterus longibarbatus | 39970 |
| Trichogenes longipinnis Britski & Ortega, 1983 | Trichogenes longipinnis | 39970 |
| Typhlobelus lundbergi Schaefer, Provenzano, de Pinna & Baskin, 2005 | Typhlobelus lundbergi | 56682 |
| Plectrochilus machadoi Miranda Ribeiro, 1917 | Plectrochilus machadoi | 39970 |
| Thrichomycterus macraei Girard, 1855 | Hatcheria macraei | 39970 |
| Typhlobelus macromycterus Costa & Bockmann, 1994 | Typhlobelus macromycterus | 39970 |
| Trichomycterus macrophthalmus Barbosa & Costa, 2012 | Trichomycterus macrophthalmus | 89884 |
| Stegophilus macrops Steindachner, 1882 | Henonemus macrops | 39970 |
| Trichomycterus macrotrichopterus Barbosa & Costa, 2010 | Trichomycterus macrotrichopterus | 84023 |
| Stegophilus maculatus Steindachner, 1879 | Parastegophilus maculatus | 39970 |
| Trichomycterus maculatus Valenciennes, 1846 | Trichomycterus areolatus | 39970 |
| Trichomycterus maculosus Barbosa & Costa, 2010 | Trichomycterus maculosus | 86272 |
| Ituglanis macunaima Datovo & Landim, 2005 | Ituglanis macunaima | 56915 |
| Branchioica magdalenae Miles, 1943 | Paravandellia phaneronema | 39970 |
| Pygidianops magoi Schaefer, Provenzano, de Pinna & Baskin, 2005 | Pygidianops magoi | 56682 |
| Hatcheria maldonadoi Eigenmann, 1920 | Bullockia maldonadoi | 39970 |
| Trichomycterus maldonadoi Ardila Rodríguez, 2011 | Trichomycterus maldonadoi | 87661 |
| Ituglanis mambai Bichuette & Trajano, 2008 | Ituglanis mambai | 75008 |
| Trichomycterus maracaya Bockmann & Sazima, 2004 | Trichomycterus maracaya | 51380 |
| Trichomycterus mariamole Barbosa & Costa, 2010 | Trichomycterus mariamole | 84023 |
| Trachypoma marmoratum Giebel, 1871 | Eremophilus mutisii | 39970 |
| Trichomycterus marmoratus Philippi, 1866 | Trichomycterus areolatus | 39970 |
| Trichomycterus mboycy Wosiacki & Garavello, 2004 | Trichomycterus mboycy | 52482 |
| Trichomycterus megantoni Fernández & Chuquihuamaní, 2007 | Trichomycterus megantoni | 58750 |
| Tridens melanops Eigenmann & Eigenmann, 1889 | Tridens melanops | 39970 |
| Trichomycterus mendozensis Arratia, Chang G., Menu-Marque & Rojas M., 1978 | Silvinichthys mendozensis | 33071 |
| Trichomycterus meridae Regan, 1903 | Trichomycterus meridae | 39970 |
| Pygidium metae Eigenmann, 1917 | Ituglanis metae | 26282 |
| Pygidium metae guayaberensis Dahl, 1960 | Ituglanis guayaberensis | 39970 |
| Pareiodon microps Kner, 1855 | Pareiodon microps | 39970 |
| Pygidium migrans Dahl, 1960 | Trichomycterus migrans | 39970 |
| Trichomycterus mimonha Costa, 1992 | Trichomycterus mimonha | 39970 |
| Trichomycterus mimosensis Barbosa, 2013 | Trichomycterus mimosensis | 94725 |
| Trichomycterus minus Fernández & Vari, 2012 | Trichomycterus minus | 94174 |
| Trichomycterus minutus Boulenger, 1891 | Scleronema minutum | 26282 |
| Trichomycterus mirissumba Costa, 1992 | Trichomycterus mirissumba | 39970 |
| Pygidium mondolfi Schultz, 1945 | Trichomycterus mondolfi | 26282 |
| Eremophilus mutisii Humboldt, 1805 | Eremophilus mutisii | 39970 |
| Trichomycterus naipi Wosiacki & Garavello, 2004 | Trichomycterus naipi | 52482 |
| Ituglanis nebulosus de Pinna & Keith, 2003 | Ituglanis nebulosus | 54621 |
| Listrura nematopteryx de Pinna, 1988 | Listrura nematopteryx | 39970 |
| Stegophilus nemurus Günther, 1869 | Pseudostegophilus nemurus | 26282 |
| Trichomycterus nigricans Valenciennes, 1832 | Trichomycterus nigricans | 39970 |
| Trichomycterus nigroauratus Barbosa & Costa, 2008 | Trichomycterus nigroauratus | 79612 |
| Trichomycterus nigromaculatus Boulenger, 1887 | Trichomycterus nigromaculatus | 39970 |
| Glanapteryx niobium de Pinna, 1998 | Glanapteryx niobium | 39970 |
| Trichomycterus novalimensis Barbosa & Costa, 2010 | Trichomycterus novalimensis | 84023 |
| Scleronema operculatum Eigenmann, 1917 | Scleronema operculatum | 39970 |
| Ochmacanthus orinoco Myers, 1927 | Ochmacanthus orinoco | 39970 |
| Pygidium oroyae Eigenmann & Eigenmann, 1889 | Trichomycterus oroyae | 54621 |
| Pygidium oroyae (non Eigenmann & Eigenmann, 1889) | Trichomycterus rivulatus | 58750 |
| Copionodon orthiocarinatus de Pinna, 1992 | Copionodon orthiocarinatus | 39970 |
| Paravandellia oxyptera Miranda Ribeiro, 1912 | Paravandellia oxyptera | 39970 |
| Trichomycterus pallens Philippi, 1866 | Trichomycterus areolatus | 93826 |
| Trichomycterus pantherinus Alencar & Costa, 2004 | Trichomycterus pantherinus | 53352 |
| Henonemus panzeri Ahl, 1931 | Stegophilus panzeri | 26282 |
| Pygidium paolence Eigenmann, 1917 | Trichomycterus paolence | 26282 |
| Trichomycterus papilliferus Wosiacki & Garavello, 2004 | Trichomycterus papilliferus | 52482 |
| Pygidium paquequerense Miranda Ribeiro, 1943 | Trichomycterus paquequerense | 26282 |
| Ituglanis paraguassuensis Campos-Paiva & Costa, 2007 | Ituglanis paraguassuensis | 58334 |
| Trichomycterus pardus Cope, 1874 | Trichomycterus rivulatus | 39970 |
| Pygidium parkoi Miranda Ribeiro, 1944 | Ituglanis parkoi | 26282 |
| Paracanthopoma parva Giltay, 1935 | Paracanthopoma parva | 39970 |
| Stegophilus passarellii Miranda Ribeiro, 1944 | Homodiaetus passarellii | 39970 |
| Ituglanis passensis Fernández & Bichuette, 2002 | Ituglanis passensis | 46923 |
| Hatcheria patagoniensis Eigenmann, 1909 | Hatcheria macraei | 39970 |
| Trichomycterus pauciradiatus Alencar & Costa, 2006 | Trichomycterus pauciradiatus | 57604 |
| Pseudostegophilus paulensis Miranda Ribeiro, 1918 | Parastegophilus paulensis | 58462 |
| Trichomycterus payaya Sarmento-Soares, Zanata & Martins-Pinheiro, 2011 | Trichomycterus payaya | 87309 |
| Tridentopsis pearsoni Myers, 1925 | Tridentopsis pearsoni | 39970 |
| Copionodon pecten de Pinna, 1992 | Copionodon pecten | 39970 |
| Trichomycterus pentlandi Castelnau, 1855 | Trichomycterus rivulatus | 39970 |
| Trichomycterus perkos Datovo, Carvalho & Ferrer, 2012 | Trichomycterus perkos | 90267 |
| Branchioica phaneronema Miles, 1943 | Paravandellia phaneronema | 39970 |
| Listrura picinguabae Villa-Verde & Costa, 2006 | Listrura picinguabae | 57477 |
| Trichomycterus pictus Castelnau, 1855 | Trichomycterus rivulatus | 39970 |
| Hatcheria pique MacDonagh, 1938 | Hatcheria macraei | 39970 |
| Trichomycterus pirabitira Barbosa & Azevedo-Santos, 2012 | Trichomycterus pirabitira | 92859 |
| Miuroglanis platycephalus Eigenmann & Eigenmann, 1889 | Miuroglanis platycephalus | 26282 |
| Vandellia plazaii Castelnau, 1855 | Vandellia cirrhosa | 39970 |
| Trichomycterus plumbeus Wosiacki & Garavello, 2004 | Trichomycterus plumbeus | 52482 |
| Trichomycterus poeyanus Cope, 1877 | Trichomycterus rivulatus | 39970 |
| Trichomycterus poikilos Ferrer & Malabarba, 2013 | Trichomycterus poikilos | 93814 |
| Trichomycterus potschi Barbosa & Costa, 2003 | Trichomycterus potschi | 52913 |
| Trichomycterus pradensis Sarmento-Soares, Martins-Pinheiro, Aranda & Chamon, 2005 | Trichomycterus pradensis | 56791 |
| Trichomycterus proops Miranda Ribeiro, 1908 | Ituglanis proops | 26282 |
| Pygidium proops parahybae Eigenmann, 1918 | Ituglanis parahybae | 26282 |
| Trichomycterus pseudosilvinichthys Fernández & Vari, 2004 | Trichomycterus pseudosilvinichthys | 53320 |
| Ammoglanis pulex de Pinna & Winemiller, 2000 | Ammoglanis pulex | 40443 |
| Trichomycterus punctatissimus Castelnau, 1855 | Trichomycterus punctatissimus | 39970 |
| Stegophilus punctatus Boulenger, 1887 | Henonemus punctatus | 26282 |
| Pygidium punctulatum piurae Eigenmann, 1922 | Trichomycterus piurae | 26282 |
| Trichomycterus punctulatus Valenciennes, 1846 | Trichomycterus punctulatus | 39970 |
| Trichomycterus puriventris Barbosa & Costa, 2012 | Trichomycterus puriventris | 91059 |
| Trichomycterus pusillus Castelnau, 1855 | Pareiodon microps | 39970 |
| Pygidium quechuorum Steindachner, 1900 | Trichomycterus rivulatus | 39970 |
| Ituglanis ramiroi Bichuette & Trajano, 2004 | Ituglanis ramiroi | 55401 |
| Trichomycterus ramosus Fernández, 2000 | Trichomycterus ramosus | 45128 |
| Pygidium regani Eigenmann, 1917 | Trichomycterus regani | 26282 |
| Pygidium reinhardti Eigenmann, 1917 | Trichomycterus reinhardti | 26282 |
| Stegophilus reinhardtii Steindachner, 1882 | Ochmacanthus reinhardtii | 26282 |
| Trichomycterus retropinnis Regan, 1903 | Trichomycterus retropinnis | 39970 |
| Microcambeva ribeirae Costa, Lima & Bizerril, 2004 | Microcambeva ribeirae | 53272 |
| Pygidium riojanum Berg, 1897 | Trichomycterus riojanus | 39970 |
| Trichomycterus rivulatus Valenciennes, 1846 | Trichomycterus rivulatus | 39970 |
| Glaphyropoma rodriguesi de Pinna, 1992 | Glaphyropoma rodriguesi | 39970 |
| Trichomycterus roigi Arratia & Menu-Marque, 1984 | Trichomycterus roigi | 39970 |
| Pygidium romeroi Fowler, 1941 | Trichomycterus romeroi | 26282 |
| Trichomycterus rubbioli Bichuette & Rizzato, 2012 | Trichomycterus rubbioli | 91769 |
| Trichomycterus rubiginosus Barbosa & Costa, 2010 | Trichomycterus rubiginosus | 84023 |
| Trichomycterus ruitoquensis Ardila Rodríguez, 2007 | Trichomycterus ruitoquensis | 87661 |
| Trichomycterus sandovali Ardila Rodríguez, 2006 | Trichomycterus sandovali | 78569 |
| Vandellia sanguinea Eigenmann, 1917 | Vandellia sanguinea | 39970 |
| Pygidium santaeritae Eigenmann, 1918 | Trichomycterus santaeritae | 39970 |
| Trichomycterus santanderensis Castellanos-Morales, 2007 | Trichomycterus santanderensis | 58751 |
| Stenolicmus sarmientoi de Pinna & Starnes, 1990 | Stenolicmus sarmientoi | 39970 |
| Pseudostegophilus scarificator Ihering, 1930 | Parastegophilus paulensis | 93826 |
| Pygidium schmidti Berg, 1897 | Trichomycterus borellii | 39970 |
| Pygidium septentrionale Behre, 1928 | Trichomycterus striatus | 58032 |
| Stegophilus septentrionalis Myers, 1927 | Stegophilus septentrionalis | 39970 |
| Sarcoglanis simplex Myers & Weitzman, 1966 | Sarcoglanis simplex | 39970 |
| Trichomycterus sketi Castellanos-Morales, 2011 | Trichomycterus sketi | 87778 |
| Pygidium spegazzinii Berg, 1897 | Trichomycterus spegazzinii | 26282 |
| Trichomycterus spelaeus DoNascimiento, Villarreal & Provenzano, 2001 | Trichomycterus spelaeus | 39970 |
| Pygidium spilosoma Regan, 1913 | Trichomycterus spilosoma | 26282 |
| Glaphyropoma spinosum Bichuette, de Pinna & Trajano, 2008 | Glaphyropoma spinosum | 79016 |
| Pygidium stawiarski Miranda Ribeiro, 1968 | Trichomycterus stawiarski | 39970 |
| Trichomycterus steindachneri DoNascimiento, Prada-Pedreros & Guerrero-Kommritz, 2014 | Trichomycterus steindachneri | 102659 |
| Pygidium stellatum Eigenmann, 1918 | Trichomycterus stellatus | 26282 |
| Pygidium straminium Eigenmann, 1917 | Trichomycterus straminius | 26282 |
| Pygidium striatum Meek & Hildebrand, 1913 | Trichomycterus striatus | 26282 |
| Trichomycterus taczanowskii Steindachner, 1882 | Trichomycterus taczanowskii | 39970 |
| Trichomycterus taenia Kner, 1863 | Trichomycterus taenia | 39970 |
| Pygidium taenia transandianum Steindachner, 1915 | Trichomycterus transandianus | 39970 |
| Trichomycterus taeniops Fowler, 1954 | Trichomycterus taeniops | 39970 |
| Trichomycterus taroba Wosiacki & Garavello, 2004 | Trichomycterus taroba | 52482 |
| Ochmacanthus taxistigma Fowler, 1914 | Henonemus taxistigmus | 26282 |
| Parabranchioica teaguei Devincenzi & Vaz-Ferreira, 1939 | Paravandellia oxyptera | 39970 |
| Pygidium tenue Fowler, 1945 | Trichomycterus taeniops | 39970 |
| Trichomycterus tenuis Weyenbergh, 1877 | Trichomycterus tenuis | 39970 |
| Typhlobelus ternetzi Myers, 1944 | Typhlobelus ternetzi | 39970 |
| Trichomycterus tete Barbosa & Costa, 2011 | Trichomycterus tete | 88926 |
| Listrura tetraradiata Landim & Costa, 2002 | Listrura tetraradiata | 41513 |
| Trichomycterus therma Fernández & Miranda, 2007 | Trichomycterus therma | 72406 |
| Trichomycterus tigrinus Philippi, 1866 | Trichomycterus areolatus | 39970 |
| Pygidium tiraquae (non Fowler, 1940) | Trichomycterus rivulatus | 72406 |
| Pygidium tiraquae Fowler, 1940 | Trichomycterus tiraquae | 26282 |
| Hatcheria titcombi Eigenmann, 1917 | Hatcheria macraei | 39970 |
| Tridentopsis tocantinsi La Monte, 1939 | Tridentopsis tocantinsi | 39970 |
| Pygidium totae Miles, 1942 | Rhizosomichthys totae | 26282 |
| Pygidium travassosi Miranda Ribeiro, 1949 | Trichomycterus alternatus | 58032 |
| Trichomycterus trefauti Wosiacki, 2004 | Trichomycterus trefauti | 52782 |
| Henonemus triacanthopomus DoNascimiento & Provenzano, 2006 | Henonemus triacanthopomus | 57442 |
| Pygidium triguttatum Eigenmann, 1918 | Trichomycterus triguttatus | 26282 |
| Trichomycterus tropeiro Ferrer & Malabarba, 2011 | Trichomycterus tropeiro | 87104 |
| Trichomycterus tupinamba Wosiacki & Oyakawa, 2005 | Trichomycterus tupinamba | 56907 |
| Trichomycterus uisae Castellanos-Morales, 2008 | Trichomycterus uisae | 79018 |
| Pygidium unicolor Regan, 1913 | Trichomycterus unicolor | 26282 |
| Trichomycterus variegatus Costa, 1992 | Trichomycterus variegatus | 39970 |
| Homodiaetus vazferreirai Devincenzi, 1939 | Homodiaetus anisitsi | 39970 |
| Haemomaster venezuelae Myers, 1927 | Haemomaster venezuelae | 26282 |
| Tridensimilis venezuelae Schultz, 1944 | Tridensimilis venezuelae | 39970 |
| Pygidium venulosum Steindachner, 1915 | Trichomycterus venulosus | 26282 |
| Pygidium vermiculatum Eigenmann, 1917 | Trichomycterus vermiculatus | 26282 |
| Trichomycterus vittatus Regan, 1903 | Trichomycterus vittatus | 39970 |
| Pygidium weyrauchi Fowler, 1945 | Trichomycterus weyrauchi | 26282 |
| Vandellia wieneri Pellegrin, 1909 | Plectrochilus wieneri | 39970 |
| Trichomycterus yuska Fernández & Schaefer, 2003 | Trichomycterus yuska | 52833 |
| Pygidium zonatum Eigenmann, 1918 | Trichomycterus zonatus | 26282 |