| Nominal Species (n = 75) | Present allocation (n = 37) | Ref. |
|---|---|---|
| Gymnotus acus Brünnich, 1768 | Carapus acus | 6347 |
| Fierasfer affinis Günther, 1862 | Encheliophis homei | 34024 |
| Onuxodon albometeori Koeda, 2019 | Onuxodon albometeori | 122011 |
| Echiodon anchipterus Williams, 1984 | Echiodon anchipterus | 10698 |
| Fierasfer arenicola Jordan & Gilbert, 1882 | Carapus dubius | 34024 |
| Echiodon atopus Anderson, 2005 | Echiodon atopus | 54849 |
| Lefroyia bermudensis Jones, 1874 | Carapus bermudensis | 6347 |
| Carapus birpex Arnold, 1956 | Carapus acus | 34024 |
| Fierasfer boraborensis Kaup, 1856 | Encheliophis boraborensis | 6347 |
| Snyderidia bothrops Robins & Nielsen, 1970 | Snyderidia canina | 34024 |
| Oxybelus brandesii Bleeker, 1851 | Encheliophis homei | 92135 |
| Snyderidia canina Gilbert, 1905 | Snyderidia canina | 34024 |
| Fierasfer caninus (non Günther, 1862) | Encheliophis homei | 33390 |
| Fierasfer caninus Günther, 1862 | Carapus dubius | 34024 |
| Rhizoiketicus carolinensis Vaillant, 1893 | Encheliophis boraborensis | 34024 |
| Encheliophis chardewalli Parmentier, 2004 | Encheliophis chardewalli | 51068 |
| Carapus chavesi Ancona López, 1956 | Carapus bermudensis | 34024 |
| Carapus cinereus Smith, 1955 | Eurypleuron cinereum | 5275 |
| Echiodon coheni Williams, 1984 | Echiodon coheni | 34024 |
| Echiodon cryomargarites Markle, Williams & Olney, 1983 | Echiodon cryomargarites | 34024 |
| Carapus cuspis Arnold, 1956 | Carapus acus | 34024 |
| Echiodon dawsoni Williams & Shipp, 1982 | Echiodon dawsoni | 34024 |
| Ophidium dentatum Cuvier, 1829 | Echiodon dentatus | 5275 |
| Vexillifer dephilippii Gasco, 1870 | Carapus acus | 34024 |
| Echiodon drummondii Thompson, 1837 | Echiodon drummondii | 46206 |
| Fierasfer dubius Putnam, 1874 | Carapus dubius | 6347 |
| Fierasfer dubius (non Putnam, 1874) | Carapus bermudensis | 6347 |
| Echiodon exsilium Rosenblatt, 1961 | Echiodon exsilium | 34024 |
| Ophidium fierasfer Risso, 1827 | Carapus acus | 34024 |
| Notopterus fontanesii Risso, 1810 | Carapus acus | 34024 |
| Jordanicus fowleri Smith, 1955 | Onuxodon fowleri | 11228 |
| Oxybeles gracilis Bleeker, 1856 | Encheliophis gracilis | 4104 |
| Encheliophiops hancocki Reid, 1940 | Encheliophis vermicularis | 80565 |
| Disparichthys herrei Schultz, 1938 | Carapus bermudensis | 34024 |
| Oxybeles homei Richardson, 1846 | Encheliophis homei | 33390 |
| Fierasfer houlti Ogilby, 1922 | Encheliophis gracilis | 34024 |
| Ophidium imberbe Cuvier, 1815 | Carapus acus | 34024 |
| Encheliophis jordani Heller & Snodgrass, 1903 | Encheliophis vermicularis | 34024 |
| Fierasfer kagoshimanus Steindachner & Döderlein, 1887 | Encheliophis boraborensis | 34024 |
| Pyramodon lindas Markle & Olney, 1990 | Pyramodon lindas | 34024 |
| Porobronchus linearis Kaup, 1860 | Carapus acus | 34024 |
| Oxybeles lumbricoides Bleeker, 1854 | Carapus mourlani | 34024 |
| Leptofierasfer macrurus Meek & Hildebrand, 1928 | Carapus dubius | 34024 |
| Fierasfer maculata Swainson, 1839 | Carapus acus | 34024 |
| Fierasfer margaritiferae Rendahl, 1921 | Onuxodon margaritiferae | 6347 |
| Carapus mayottae Smith, 1955 | Carapus mourlani | 34024 |
| Fierasfer microdon Gilbert, 1905 | Carapus dubius | 34024 |
| Fierasfer mourlani Petit, 1934 | Carapus mourlani | 4104 |
| Fierasfer neglectum Peters, 1855 | Encheliophis homei | 34024 |
| Echiodon neotes Markle & Olney, 1990 | Echiodon neotes | 34024 |
| Carapus owasianus Matsubara, 1953 | Eurypleuron owasianum | 34024 |
| Pyramodon parini Markle & Olney, 1990 | Pyramodon parini | 34024 |
| Carapus parvibrachium Fowler, 1927 | Onuxodon parvibrachium | 4104 |
| Fierasfer parvipinnis Kaup, 1856 | Encheliophis boraborensis | 34024 |
| Echiodon pegasus Markle & Olney, 1990 | Echiodon pegasus | 34024 |
| Carapus pindae Smith, 1955 | Carapus mourlani | 34024 |
| Echiodon prionodon Parmentier, 2012 | Echiodon prionodon | 93132 |
| Echiodon pukaki Markle & Olney, 1990 | Echiodon pukaki | 34024 |
| Cynophidium punctatum Regan, 1914 | Pyramodon punctatus | 4104 |
| Carapus recifensis Ancona López, 1956 | Carapus bermudensis | 34024 |
| Carapus reedi Smith, 1955 | Onuxodon parvibrachium | 34024 |
| Carapus reedi Smith, 1955 | Onuxodon fowleri | 34024 |
| Carapus rendahli Whitley, 1941 | Echiodon rendahli | 5275 |
| Carapus sagamianus Tanaka, 1908 | Encheliophis sagamianus | 6347 |
| Fierasfer sluiteri Weber, 1905 | Carapus sluiteri | 6347 |
| Tetragondacnus spilotus Anderson & Satria, 2007 | Tetragondacnus spilotus | 75581 |
| Encheliophis tenuis Putnam, 1874 | Carapus acus | 34024 |
| Fierasfer umbratilis Jordan & Evermann, 1903 | Encheliophis gracilis | 34024 |
| Carapus variegatus Fowler & Steinitz, 1956 | Carapus mourlani | 34024 |
| Carapus variegatus (non Fowler & Steinitz, 1956) | Carapus acus | 6347 |
| Pyramodon ventralis Smith & Radcliffe, 1913 | Pyramodon ventralis | 34024 |
| Pyramodon ventralis (non Smith & Radcliffe, 1913) | Pyramodon punctatus | 4104 |
| Pyramodon ventralis (non Smith & Radcliffe, 1913) | Pyramodon parini | 6347 |
| Encheliophis vermicularis Müller, 1842 | Encheliophis vermicularis | 37008 |
| Encheliophis vermiops Markle & Olney, 1990 | Encheliophis vermiops | 37008 |