| Nominal Species (n = 309) | Present allocation (n = 218) | Ref. |
|---|---|---|
| Rhamdia alfaroi Fowler, 1932 | Rhamdia nicaraguensis | 36914 |
| Pimelodus altipinnis Steindachner, 1864 | Pimelodella altipinnis | 36914 |
| Rhamdia amatitlanensis Fowler, 1936 | Rhamdia laticauda | 36914 |
| Gladioglanis anacanthus Rocha, de Oliveira & Rapp Py-Daniel, 2008 | Gladioglanis anacanthus | 79081 |
| Heptapterus anisurus Mees, 1987 | Phenacorhamdia anisura | 36914 |
| Pimelodus argentinus Humboldt, 1821 | Rhamdia argentina | 58462 |
| Pariolius armillatus Cope, 1872 | Pariolius armillatus | 36914 |
| Mastiglanis asopos Bockmann, 1994 | Mastiglanis asopos | 36914 |
| Myoglanis aspredinoides DoNascimiento & Lundberg, 2005 | Myoglanis aspredinoides | 54795 |
| Pimelodella avanhandavae Eigenmann, 1917 | Pimelodella avanhandavae | 36914 |
| Rhamdella aymarae Miquelarena & Menni, 1999 | Rhamdella aymarae | 36914 |
| Rhamdia barbata Meek, 1907 | Rhamdia quelen | 36914 |
| Pimelodus baronismuelleri Troschel, 1865 | Rhamdia quelen | 36914 |
| Pimelodus bathyurus Cope, 1878 | Rhamdia quelen | 36914 |
| Nannorhamdia benedettii Fernández-Yépez & Martín Salazar, 1952 | Rhamdia humilis | 36914 |
| Nannoglanis bifasciatus Eigenmann & Norris, 1900 | Taunayia bifasciata | 36914 |
| Heptapterus bleekeri Boeseman, 1953 | Chasmocranus bleekeri | 36914 |
| Pimelodella bockmanni Slobodian & Pastana, 2018 | Pimelodella bockmanni | 119365 |
| Pimelodella boliviana Eigenmann, 1917 | Pimelodella boliviana | 36914 |
| Imparfinis bolivianus Pearson, 1924 | Phenacorhamdia boliviana | 36914 |
| Cetopsorhamdia boquillae Eigenmann, 1922 | Cetopsorhamdia boquillae | 36914 |
| Imparfinis borodini Mees & Cala, 1989 | Heptapterus longicauda | 128586 |
| Pimelodella boschmai Van der Stigchel, 1964 | Pimelodella boschmai | 36914 |
| Pimelodus boucardi Regan, 1907 | Rhamdia quelen | 36914 |
| Pimelodus brachycephalus Regan, 1907 | Rhamdia laticauda | 36914 |
| Chasmocranus brachynemus Gomes & Schubart, 1958 | Chasmocranus brachynemus | 36914 |
| Pimelodus brachypterus Cope, 1867 | Rhamdia laticauda | 36914 |
| Rhamdia branneri Haseman, 1911 | Rhamdia quelen | 36914 |
| Rhamdia branneri voulezi Haseman, 1911 | Rhamdia quelen | 36914 |
| Rhamdia bransfordii Gill, 1877 | Rhamdia quelen | 36914 |
| Caecorhamdella brasiliensis Borodin, 1927 | Pimelodella kronei | 27297 |
| Pimelodus brasiliensis Steindachner, 1877 | Pimelodella brasiliensis | 36914 |
| Pimelodus breviceps Kner, 1858 | Pimelodella breviceps | 36914 |
| Chasmocranus brevior Eigenmann, 1912 | Chasmocranus brevior | 36914 |
| Pimelodus buckleyi Boulenger, 1887 | Pimelodella buckleyi | 36914 |
| Rhamdia cabrerae Meek, 1906 | Rhamdia laticauda | 36914 |
| Rhamdella cainguae Bockmann & Miquelarena, 2008 | Rhamdella cainguae | 75872 |
| Heptapterus carmelitanorum Deprá, Aguilera, Faustino-Fuster, Katz & Azevedo-Santos, 2022 | Heptapterus carmelitanorum | 127242 |
| Heptapterus carnatus Faustino‐Fuster, Bockmann & Malabarba, 2019 | Heptapterus carnatus | 119766 |
| Pimelodus chagresi Steindachner, 1876 | Pimelodella chagresi | 36914 |
| Pimelodella chagresi odynea Schultz, 1944 | Pimelodella odynea | 36914 |
| Pimelodella chaparae Fowler, 1940 | Pimelodella chaparae | 36914 |
| Chasmocranus chimantanus Inger, 1956 | Chasmocranus chimantanus | 36914 |
| Pimelodus cinerascens Günther, 1860 | Rhamdia cinerascens | 108688 |
| Pimelodella cochabambae Fowler, 1940 | Imparfinis cochabambae | 36914 |
| Pimelodella conquetaensis Ahl, 1925 | Pimelodella conquetaensis | 36914 |
| Gladioglanis conquistador Lundberg, Bornbusch & Mago-Leccia, 1991 | Gladioglanis conquistador | 36914 |
| Pimelodella copei Fowler, 1915 | Pimelodella buckleyi | 36914 |
| Pimelodus cristatus Müller & Troschel, 1849 | Pimelodella cristata | 36914 |
| Pimelodella cruxenti Fernández-Yépez, 1950 | Pimelodella cruxenti | 36914 |
| Pimelodus cuyabae Steindachner, 1877 | Rhamdia quelen | 36914 |
| Rhamdia cyanostigma Cope, 1870 | Pimelodella cyanostigma | 36914 |
| Pimelodus deppei Müller & Troschel, 1849 | Rhamdia quelen | 36914 |
| Rhamdia depressa Barbour & Cole, 1906 | Rhamdia quelen | 36914 |
| Rhamdia dorsalis Gill, 1870 | Rhamdia quelen | 36914 |
| Pimelodella dorseyi Fowler, 1941 | Pimelodella dorseyi | 36914 |
| Rhamdia duquei Eigenmann & Pearson, 1942 | Rhamdia quelen | 36914 |
| Heptapterus eigenmanni Steindachner, 1907 | Heptapterus mustelinus | 36914 |
| Pimelodella eigenmanni Meek, 1905 | Pimelodella meeki | 36914 |
| Pimelodus eigenmanni Boulenger, 1891 | Pimelodella eigenmanni | 36914 |
| Rhamdia eigenmanniorum Miranda Ribeiro, 1911 | Pimelodella eigenmanniorum | 36914 |
| Pimelodus elongatus Günther, 1860 | Pimelodella elongata | 36914 |
| Rhamdia enfurnada Bichuette & Trajano, 2005 | Rhamdia enfurnada | 56934 |
| Pimelodella enochi Fowler, 1941 | Pimelodella enochi | 36914 |
| Pimelodus eques Müller & Troschel, 1849 | Goeldiella eques | 36914 |
| Rhamdia eriarcha Eigenmann & Eigenmann, 1888 | Rhamdella eriarcha | 36914 |
| Leptoglanis essequibensis Eigenmann, 1912 | Leptorhamdia essequibensis | 36914 |
| Pimelodella eutaenia Regan, 1913 | Pimelodella eutaenia | 36914 |
| Heptapterus exilis Faustino‐Fuster, Bockmann & Malabarba, 2019 | Heptapterus exilis | 119766 |
| Pimelodus exsudans Jenyns, 1842 | Rhamdella exsudans | 36914 |
| Nannoglanis fasciatus Boulenger, 1887 | Nannoglanis fasciatus | 36914 |
| Pimelodella figueroai Dahl, 1961 | Pimelodella figueroai | 36914 |
| Cetopsorhamdia filamentosa Fowler, 1945 | Cetopsorhamdia filamentosa | 36914 |
| Heptapterus fissipinnis Miranda Ribeiro, 1911 | Acentronichthys fissipinnis | 36914 |
| Pimelodus foina Müller & Troschel, 1849 | Rhamdia foina | 50029 |
| Breviglanis frenata Eigenmann, 1910 | Brachyglanis frenatus | 36914 |
| Brachyglanis frenatus Eigenmann, 1912 | Brachyglanis frenatus | 58032 |
| Rhamdioglanis frenatus Ihering, 1907 | Rhamdioglanis frenatus | 36914 |
| Nemuroglanis furcatus Ribeiro, Pedroza & Rapp Py-Daniel, 2011 | Nemuroglanis furcatus | 86655 |
| Pimelodella garbei Miranda Ribeiro, 1918 | Pimelodella australis | 36914 |
| Pimelodella geryi Hoedeman, 1961 | Pimelodella geryi | 36914 |
| Rhamdia gilli Starks, 1906 | Rhamdia quelen | 75872 |
| Pimelodus godmanni Günther, 1864 | Rhamdia quelen | 36914 |
| Pimelodus gracilis Valenciennes, 1835 | Pimelodella gracilis | 36914 |
| Pimelodella griffini Eigenmann, 1917 | Pimelodella griffini | 36914 |
| Pimelodus griseus Regan, 1903 | Pimelodella grisea | 36914 |
| Rhamdia guairensis Eigenmann, 1920 | Rhamdia humilis | 36914 |
| Rhamdia guasarensis DoNascimiento, Provenzano & Lundberg, 2004 | Rhamdia guasarensis | 80467 |
| Pimelodus guatemalensis Günther, 1864 | Rhamdia guatemalensis | 36914 |
| Rhamdia guatemalensis decolor Hubbs, 1936 | Rhamdia quelen | 36914 |
| Rhamdia guatemalensis muriei Hubbs, 1935 | Rhamdia quelen | 36914 |
| Rhamdia guatemalensis stygaea Hubbs, 1936 | Rhamdia quelen | 36914 |
| Medemichthys guayaberensis Dahl, 1961 | Nemuroglanis mariai | 55662 |
| Nannorhamdia guttatus Pearson, 1924 | Imparfinis guttatus | 36914 |
| Pimelodus harttii Steindachner, 1877 | Pimelodella harttii | 50838 |
| Pimelodella hartwelli Fowler, 1940 | Pimelodella hartwelli | 36914 |
| Imparfinis hasemani Steindachner, 1915 | Imparfinis hasemani | 36914 |
| Pimelodella hasemani Eigenmann, 1917 | Pimelodella hasemani | 36914 |
| Rhamdia heteracantha Regan, 1907 | Rhamdia quelen | 36914 |
| Pimelodus heteropleurus Eigenmann, 1912 | Brachyrhamdia heteropleura | 36914 |
| Pimelodus hilarii Valenciennes, 1840 | Rhamdia quelen | 36914 |
| Nannoglanis hoehnei Miranda Ribeiro, 1914 | Phenacorhamdia hoehnei | 36914 |
| Imparfinis hollandi Haseman, 1911 | Imparfinis hollandi | 36914 |
| Pimelodus holomelas Günther, 1863 | Rhamdia laukidi | 36914 |
| Rhamdia holomelas rupununi Fowler, 1914 | Rhamdia foina | 36914 |
| Pimelodella howesi (non Fowler, 1940) | Pimelodella mucosa | 120380 |
| Pimelodella howesi Fowler, 1940 | Pimelodella howesi | 36914 |
| Pimelodella humeralis Slobodian, Akama & Dutra, 2017 | Pimelodella humeralis | 118150 |
| Pimelodus humilis Günther, 1864 | Rhamdia humilis | 36914 |
| Pimelodus hypselurus Günther, 1864 | Rhamdia laticauda | 36914 |
| Rhamdella ignobilis Steindachner, 1907 | Pimelodella ignobilis | 75872 |
| Cetopsorhamdia iheringi Schubart & Gomes, 1959 | Cetopsorhamdia iheringi | 36914 |
| Brachyrhamdia imitator Myers, 1927 | Brachyrhamdia imitator | 36914 |
| Imparfinis insidiosus Steindachner, 1915 | Cetopsorhamdia insidiosa | 36914 |
| Pimelodella insignis Schubart, 1964 | Pimelodella boschmai | 36914 |
| Rhamdia itacaiunas Silfvergrip, 1996 | Rhamdia itacaiunas | 36914 |
| Pimelodella itapicuruensis Eigenmann, 1917 | Pimelodella itapicuruensis | 36914 |
| Pimelodus jenynsii Günther, 1864 | Rhamdella jenynsii | 36914 |
| Rhamdia jequitinhonha Silfvergrip, 1996 | Rhamdia jequitinhonha | 36914 |
| Pimelodus knerii Steindachner, 1877 | Rhamdia muelleri | 36914 |
| Myoglanis koepckei Chang, 1999 | Myoglanis koepckei | 36914 |
| Typhlobagrus kronei Miranda Ribeiro, 1907 | Pimelodella kronei | 36914 |
| Rhamdiopsis krugi Bockmann & Castro, 2010 | Rhamdiopsis krugi | 86271 |
| Rhamdia laluchensis Weber, Allegrucci & Sbordoni, 2003 | Rhamdia laluchensis | 52912 |
| Nemuroglanis lanceolatus Eigenmann & Eigenmann, 1889 | Nemuroglanis lanceolatus | 55662 |
| Pimelodes lateristrigus Lichtenstein, 1823 | Pimelodella lateristriga | 36914 |
| Pimelodus lateristrigus Müller & Troschel, 1849 | Pimelodella lateristriga | 36914 |
| Rhamdia laticauda typhla Greenfield, Greenfield & Woods, 1982 | Rhamdia laticauda | 36914 |
| Pimelodus laticaudus Kner, 1858 | Rhamdia laticauda | 36914 |
| Pimelodella laticeps Eigenmann, 1917 | Pimelodella laticeps | 36914 |
| Pimelodella laticeps australis Eigenmann, 1917 | Pimelodella australis | 36914 |
| Rhamdia laukidi Bleeker, 1858 | Rhamdia laukidi | 36914 |
| Pimelodella laurenti Fowler, 1941 | Pimelodella laurenti | 36914 |
| Rhamdia lehmanni Dahl, 1961 | Rhamdia quelen | 36914 |
| Rhamdella lemai Bertoletti, 1967 | Rhamdella eriarcha | 36914 |
| Acentronichthys leptos Eigenmann & Eigenmann, 1889 | Acentronichthys leptos | 36914 |
| Rhamdella leptosoma Fowler, 1914 | Pimelodella leptosoma | 75872 |
| Pimelodella linami Schultz, 1944 | Pimelodella linami | 36914 |
| Nannorhamdia lineata Bussing, 1970 | Imparfinis lineatus | 36914 |
| Pimelodella longibarbata Cortés-Hernández, DoNascimiento & Ramírez-Gil, 2020 | Pimelodella longibarbata | 128936 |
| Imparfinis longicauda Borodin, 1927 | Heptapterus longicauda | 128586 |
| Pimelodus longicauda Boulenger, 1887 | Imparfinis longicauda | 36914 |
| Chasmocephalus longior Eigenmann, 1910 | Chasmocranus longior | 36914 |
| Chasmocranus longior Eigenmann, 1912 | Chasmocranus longior | 36914 |
| Rhamdella longipinnis Borodin, 1927 | Pimelodella longipinnis | 75872 |
| Rhamdella longiuscula Lucena & da Silva, 1991 | Rhamdella longiuscula | 36914 |
| Chasmocranus lopezae Miranda Ribeiro, 1968 | Chasmocranus lopezae | 123477 |
| Rhamdia luigiana Villa, 1977 | Rhamdia nicaraguensis | 36914 |
| Phenacorhamdia macarenensis Dahl, 1961 | Phenacorhamdia macarenensis | 36914 |
| Gladioglanis machadoi Ferraris & Mago-Leccia, 1989 | Gladioglanis machadoi | 12783 |
| Nannorhamdia macrocephala Miles, 1943 | Pimelodella macrocephala | 36914 |
| Pimelodella macturki Eigenmann, 1912 | Pimelodella macturki | 36914 |
| Rhamdia macuspanensis Weber & Wilkens, 1998 | Rhamdia macuspanensis | 33862 |
| Brachyglanis magoi Fernández-Yépez, 1967 | Brachyglanis magoi | 36914 |
| Pimelodus managuensis Günther, 1867 | Rhamdia nicaraguensis | 36914 |
| Heptapterus mandimbusu Aguilera, Benitez, Terán, Alonso & Mirande, 2017 | Heptapterus mandimbusu | 116411 |
| Taunayia marginata Miranda Ribeiro, 1918 | Taunayia bifasciata | 36914 |
| Imparales mariai Schultz, 1944 | Nemuroglanis mariai | 55662 |
| Leptorhamdia marmorata Myers, 1928 | Leptorhamdia marmorata | 36914 |
| Brachyrhamdia marthae Sands & Black, 1985 | Brachyrhamdia marthae | 36914 |
| Pimelodella martinezi Fernández-Yépez, 1970 | Pimelodella martinezi | 36914 |
| Heptapterus mbya Azpelicueta, Aguilera & Mirande, 2011 | Heptapterus mbya | 87712 |
| Pimelodella meeki Eigenmann, 1910 | Pimelodella meeki | 36914 |
| Brachyrhamdia meesi Sands & Black, 1985 | Brachyrhamdia meesi | 36914 |
| Pimelodella megalops Eigenmann, 1912 | Pimelodella megalops | 36914 |
| Pimelodella megalura Miranda Ribeiro, 1918 | Pimelodella megalura | 36914 |
| Brachyglanis melas Eigenmann, 1912 | Brachyglanis melas | 36914 |
| Breviglanis melas Eigenmann, 1910 | Brachyglanis melas | 36914 |
| Pimelodella metae Eigenmann, 1917 | Pimelodella metae | 36914 |
| Rhamdia micayi Eigenmann, 1924 | Rhamdia quelen | 36914 |
| Rhamdia microcephala Lütken, 1874 | Rhamdiopsis microcephala | 36914 |
| Brachyglanis microphthalmus Bizerril, 1991 | Brachyglanis microphthalmus | 36914 |
| Imparfinis microps Eigenmann & Fisher, 1916 | Imparfinis microps | 36914 |
| Rhamdia microps Eigenmann, 1917 | Rhamdia quelen | 36914 |
| Pimelodus micropterus Günther, 1864 | Rhamdia quelen | 36914 |
| Rhamdia minuta Lütken, 1874 | Imparfinis minutus | 36914 |
| Imparfinis mirini Haseman, 1911 | Imparfinis mirini | 36914 |
| Imparfinis mishky Almirón, Casciotta, Bechara, Ruíz Díaz, Bruno, D’Ambrosio, Solimano & Soneira, 2007 | Imparfinis mishky | 78626 |
| Pimelodus modestus Günther, 1860 | Pimelodella modestus | 36914 |
| Cetopsorhamdia molinae Miles, 1943 | Cetopsorhamdia molinae | 36914 |
| Pimelodella montana Allen, 1942 | Pimelodella montana | 36914 |
| Rhamdella montana Eigenmann, 1913 | Rhamdella montana | 36914 |
| Rhamdiopsis moreirai Haseman, 1911 | Rhamdiopsis moreirai | 36914 |
| Pimelodus motaguensis Günther, 1864 | Rhamdia laticauda | 36914 |
| Rhamdia mounseyi Regan, 1913 | Rhamdia quelen | 36914 |
| Pimelodella mucosa Eigenmann & Ward, 1907 | Pimelodella mucosa | 36914 |
| Pimelodus muelleri Günther, 1864 | Rhamdia muelleri | 36914 |
| Heptapterus multiradiatus Ihering, 1907 | Heptapterus multiradiatus | 36914 |
| Pimelodus musculus Müller & Troschel, 1849 | Rhamdia quelen | 36914 |
| Pimelodus mustelinus Valenciennes, 1835 | Heptapterus mustelinus | 36914 |
| Pimelodus namdia Cuvier, 1829 | Rhamdia quelen | 36914 |
| Cetopsorhamdia nasus Eigenmann & Fisher, 1916 | Cetopsorhamdia nasus | 36914 |
| Rhamdia nasuta Meek, 1909 | Rhamdia quelen | 36914 |
| Nannorhamdia nemacheir Eigenmann & Fisher, 1916 | Imparfinis nemacheir | 36914 |
| Pimelodus nicaraguensis Günther, 1864 | Rhamdia nicaraguensis | 36914 |
| Pimelodus nigrofasciatus Perugia, 1897 | Pimelodella nigrofasciata | 36914 |
| Phenacorhamdia nigrolineata Zarske, 1998 | Phenacorhamdia nigrolineata | 36914 |
| Brachyglanis nocturnus Myers, 1928 | Brachyglanis nocturnus | 36914 |
| Pimelodella notomelas Eigenmann, 1917 | Pimelodella notomelas | 36914 |
| Rhamdia oaxacae Meek, 1902 | Rhamdia quelen | 36914 |
| Rhamdia obesa Eigenmann & Eigenmann, 1888 | Rhamdia muelleri | 36914 |
| Pimelodus ophthalmicus Cope, 1878 | Pimelodella ophthalmica | 36914 |
| Pimelodus ophthalmicus (non Cope, 1878) | Pimelodella cristata | 36914 |
| Cetopsorhamdia orinoco Schultz, 1944 | Cetopsorhamdia orinoco | 36914 |
| Heptapterus ornaticeps Ahl, 1936 | Heptapterus ornaticeps | 36914 |
| Rhamdia ortoni Fowler, 1915 | Rhamdia quelen | 36914 |
| Pimelodella pallida Dahl, 1961 | Pimelodella pallida | 36914 |
| Imparales panamensis Bussing, 1970 | Nemuroglanis panamensis | 36914 |
| Rhamdella papariae Fowler, 1941 | Pimelodella papariae | 75872 |
| Pimelodella pappenheimi Ahl, 1925 | Pimelodella pappenheimi | 36914 |
| Pimelodus parahybae Steindachner, 1877 | Rhamdia quelen | 36914 |
| Pimelodella parnahybae Fowler, 1941 | Pimelodella parnahybae | 36914 |
| Rhamdia parryi Eigenmann & Eigenmann, 1888 | Rhamdia parryi | 58032 |
| Pimelodella parva Güntert, 1942 | Pimelodella parva | 36914 |
| Pimelodus parvus Boulenger, 1898 | Imparfinis parvus | 50029 |
| Nemuroglanis pauciradiatus Ferraris, 1988 | Nemuroglanis pauciradiatus | 55662 |
| Pimelodella pectinifer Eigenmann & Eigenmann, 1888 | Pimelodella pectinifer | 36914 |
| Pimelodus pentlandii Valenciennes, 1840 | Rhamdia quelen | 36914 |
| Pimelodella peruana Eigenmann & Myers, 1942 | Pimelodella peruana | 36914 |
| Chasmocranus peruanus Eigenmann & Pearson, 1942 | Chasmocranus peruanus | 36914 |
| Pimelodella peruensis Fowler, 1915 | Pimelodella peruensis | 36914 |
| Pimelodus petenensis Günther, 1864 | Rhamdia laticauda | 36914 |
| Brachyglanis phalacra Eigenmann, 1912 | Brachyglanis phalacra | 36914 |
| Breviglanis phalacra Eigenmann, 1910 | Brachyglanis phalacra | 36914 |
| Cetopsorhamdia phantasia Stewart, 1985 | Cetopsorhamdia phantasia | 36914 |
| Cetopsorhamdia picklei Schultz, 1944 | Cetopsorhamdia picklei | 36914 |
| Cetopsorhamdia pijpersi Hoedeman, 1961 | Imparfinis pijpersi | 36914 |
| Imparfinis piperatus Eigenmann & Norris, 1900 | Imparfinis piperatus | 36914 |
| Rhamdia poeyi Eigenmann & Eigenmann, 1888 | Rhamdia poeyi | 36914 |
| Pimelodus polycaulus Günther, 1864 | Rhamdia laticauda | 36914 |
| Myoglanis potaroensis Eigenmann, 1912 | Myoglanis potaroensis | 36914 |
| Imparfinis pristos Mees & Cala, 1989 | Imparfinis pristos | 36914 |
| Pimelodella procera Mees, 1983 | Pimelodella procera | 36914 |
| Phenacorhamdia provenzanoi DoNascimiento & Milani, 2008 | Phenacorhamdia provenzanoi | 78618 |
| Imparfinis pseudonemacheir Mees & Cala, 1989 | Imparfinis pseudonemacheir | 36914 |
| Rhamdia pubescens Miranda Ribeiro, 1920 | Rhamdia quelen | 36914 |
| Heptapterus qenqo Aguilera, Mirande & Azpelicueta, 2011 | Heptapterus qenqo | 86258 |
| Silurus quadrimaculatus Bloch, 1794 | Rhamdia quelen | 36914 |
| Chasmocranus quadrizonatus Pearson, 1937 | Chasmocranus quadrizonatus | 36914 |
| Pimelodus quelen Quoy & Gaimard, 1824 | Rhamdia quelen | 36914 |
| Pimelodus queleni cuprea Steindachner, 1877 | Rhamdia quelen | 36914 |
| Pimelodella rambarrani Axelrod & Burgess, 1987 | Brachyrhamdia rambarrani | 36914 |
| Rhamdia reddelli Miller, 1984 | Rhamdia reddelli | 27297 |
| Rhamdia regani Meek, 1907 | Rhamdia laticauda | 36914 |
| Pimelodella rendahli Ahl, 1925 | Pimelodella rendahli | 36914 |
| Horiomyzon retropinnatus Stewart, 1986 | Horiomyzon retropinnatus | 36914 |
| Pimelodella reyesi Dahl, 1964 | Pimelodella reyesi | 36914 |
| Rhamdia riojae Fowler, 1915 | Rhamdia quelen | 36914 |
| Silurus rivularis Larrañaga, 1923 | Rhamdia quelen | 36914 |
| Rhamdella robinsoni Fowler, 1941 | Pimelodella robinsoni | 75872 |
| Pimelodella roccae Eigenmann, 1917 | Pimelodella roccae | 36914 |
| Pimelodus rogersi Regan, 1907 | Rhamdia laticauda | 36914 |
| Chasmocranus rosae Eigenmann, 1922 | Chasmocranus rosae | 36914 |
| Pimelodella rudolphi Miranda Ribeiro, 1918 | Pimelodella rudolphi | 36914 |
| Rhamdella rusbyi Pearson, 1924 | Rhamdella rusbyi | 36914 |
| Rhamdia sacrificii Barbour & Cole, 1906 | Rhamdia laticauda | 36914 |
| Rhamdia saijaensis Rendahl, 1941 | Rhamdia saijaensis | 108688 |
| Pimelodus salvini Günther, 1864 | Rhamdia laticauda | 36914 |
| Silurus sapipoca Natterer, 1858 | Rhamdia quelen | 36914 |
| Pimelodus sapo Valenciennes, 1835 | Rhamdia quelen | 36914 |
| Rhamdia schomburgkii Bleeker, 1858 | Rhamdia schomburgkii | 6868 |
| Nannorhamdia schubarti Gomes, 1956 | Imparfinis schubarti | 36914 |
| Rhamdella schultzi Miranda Ribeiro, 1964 | Leptorhamdia schultzi | 36914 |
| Pimelodus sebae Cuvier, 1829 | Rhamdia quelen | 36914 |
| Rhamdia sebae martyi Güntert, 1942 | Rhamdia quelen | 36914 |
| Pimelodus sellonis Müller & Troschel, 1849 | Rhamdia quelen | 36914 |
| Pimelodella serrata Eigenmann, 1917 | Pimelodella serrata | 36914 |
| Heterobranchus sextentaculatus Spix & Agassiz, 1829 | Rhamdia quelen | 36914 |
| Cetopsorhamdia shermani Schultz, 1944 | Cetopsorhamdia molinae | 36914 |
| Heptapterus somnians Mees, 1974 | Phenacorhamdia somnians | 36914 |
| Pimelodella spelaea Trajano, Reis & Bichuette, 2004 | Pimelodella spelaea | 55501 |
| Nannorhamdia spurrellii Regan, 1913 | Imparfinis spurrellii | 36914 |
| Pimelodus stegelichii Müller & Troschel, 1849 | Rhamdia quelen | 36914 |
| Pimelodella steindachneri Eigenmann, 1917 | Pimelodella steindachneri | 36914 |
| Heptapterus stewarti Haseman, 1911 | Heptapterus stewarti | 36914 |
| Nannorhamdia stictonotus Fowler, 1940 | Imparfinis stictonotus | 36914 |
| Rhamdella straminea Cope, 1894 | Rhamdella eriarcha | 36914 |
| Heptapterus surinamensis Bleeker, 1862 | Chasmocranus surinamensis | 36914 |
| Heptapterus sympterygium Buckup, 1988 | Heptapterus sympterygium | 36914 |
| Pimelodus taeniophorus Regan, 1903 | Pimelodella taeniophora | 36914 |
| Pimelodella taenioptera Miranda Ribeiro, 1914 | Pimelodella taenioptera | 36914 |
| Heptapterus tapanahoniensis Mees, 1967 | Chasmocranus tapanahoniensis | 36914 |
| Pimelodella tapatapae Eigenmann, 1920 | Pimelodella tapatapae | 36914 |
| Phenacorhamdia taphorni DoNascimiento & Milani, 2008 | Phenacorhamdia taphorni | 78618 |
| Imparfinis tenebrosus Schubart, 1964 | Phenacorhamdia tenebrosa | 36914 |
| Rhamdia tenella Eigenmann & Eigenmann, 1888 | Rhamdia laukidi | 36914 |
| Heptapterus tenuis Mees, 1986 | Phenacorhamdia tenuis | 36914 |
| Brachyrhamdia thayeria Slobodian & Bockmann, 2013 | Brachyrhamdia thayeria | 94149 |
| Imparfinis timana Ortega-Lara, Milani, DoNascimiento, Villa-Navarro & Maldonado-Ocampo, 2011 | Imparfinis timana | 88952 |
| Rhamdioglanis transfasciatus Miranda Ribeiro, 1908 | Rhamdioglanis transfasciatus | 36914 |
| Pimelodella transitoria Miranda Ribeiro, 1907 | Pimelodella transitoria | 36914 |
| Chasmocranus truncatorostris Borodin, 1927 | Chasmocranus truncatorostris | 36914 |
| Rhamdia underwoodi Regan, 1907 | Rhamdia laticauda | 36914 |
| Phenacorhamdia unifasciata Britski, 1993 | Phenacorhamdia unifasciata | 36914 |
| Caecorhamdia urichi Norman, 1926 | Rhamdia quelen | 36914 |
| Imparfinis usmai Ortega-Lara, Milani, DoNascimiento, Villa-Navarro & Maldonado-Ocampo, 2011 | Imparfinis usmai | 88952 |
| Pimelodus velifer Humboldt, 1821 | Rhamdia velifer | 36914 |
| Pimelenotus vilsoni Gill, 1858 | Rhamdia quelen | 36914 |
| Pseudorhamdia vittatus Lütken, 1874 | Pimelodella vittata | 36914 |
| Pimelodus wagneri Günther, 1868 | Rhamdia quelen | 36914 |
| Pimelodus wesselii Steindachner, 1877 | Pimelodella wesselii | 36914 |
| Pimelodella witmeri Fowler, 1941 | Pimelodella witmeri | 36914 |
| Rhamdella wolfi Fowler, 1941 | Pimelodella wolfi | 75872 |
| Pimelodus wuchereri Günther, 1864 | Rhamdia quelen | 36914 |
| Rhamdia xetequepeque Silfvergrip, 1996 | Rhamdia xetequepeque | 36914 |
| Pimelodella yuncensis Steindachner, 1902 | Pimelodella yuncensis | 36914 |
| Rhamdella zelimai Reis, Malabarba & Lucena, 2014 | Rhamdella zelimai | 98446 |
| Rhamdia zongolicensis (non Wilkens, 1993) | Rhamdia laticauda | 52299 |
| Rhamdia zongolicensis Wilkens, 1993 | Rhamdia zongolicensis | 52299 |