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Ophidiidae Cusk-eels
- Abyssobrotula galatheae Abyssal Brotula
- Acanthonus armatus Bony-eared Assfish
- Apagesoma delosommatus Flabby Brotula
- Apagesoma edentatum Smooth-palate Brotula
- Barathrites iris Smallheaded Cusk-eel
- Barathrites parri Parr's Cusk-eel
- Barathrodemus manatinus Manatee Cusk-eel
- Bassogigas gillii Gill's Cusk-eel
- Bassozetus levistomatus Japanese Assfish
- Bassozetus mozambiquensis Mozambique Assfish
- Bassozetus nielseni Nielsen's Assfish
- Bassozetus normalis Normal Assfish
- Bassozetus taenia Atlantic Assfish
- Bassozetus trachibranchus Roughgilled Assfish
- Benthocometes robustus Robust Brotula
- Lamprogrammus brunswigi Dark Cuskeel
- Lepophidium aporrhox Dusky Cusk-eel
- Lepophidium brevibarbe Blackedge Cusk-eel
- Lepophidium collettei Brazilian Cusk-eel
- Lepophidium crossotum Whitespot Cusk-eel
- Lepophidium cultratum Blackear Cusk-eel
- Lepophidium entomelan Blackthroat Cusk-eel
- Lepophidium gilmorei Pepperfin Cusk-eel
- Lepophidium jeannae Mottled Cusk-eel
- Lepophidium kallion Palenose Cusk-eel
- Lepophidium marmoratum Marbled Cusk-eel
- Lepophidium pheromystax Upsilon Cusk-eel
- Lepophidium profundorum Fawn Cusk-eel
- Lepophidium robustum Robust Cusk-eel
- Lepophidium staurophor Barred Cusk-eel
- Lepophidium wileyi Fringed Cusk-eel
- Lepophidium zophochir Sooty Cusk-eel
- Leucicorus atlanticus Atlantic Blackeyed Cusk-eel
- Neobythites braziliensis Saddled Brotula
- Neobythites elongatus Elongate Brotula
- Neobythites gilli Two-spot Brotula
- Neobythites marginatus Pinstriped Brotula
- Neobythites monocellatus One-spot Brotula
- Neobythites multidigitatus Many-rayed Brotula
- Neobythites multiocellatus Many-spot Brotula
- Neobythites ocellatus Ocellated Brotula
- Neobythites unicolor Plain Brotula
- Ophidion grayi Blotched Cusk-eel
- Otophidium omostigma Polkadot Cusk-eel
- Xyelacyba myersi Gargoyle Cusk-eel