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Alepocephalidae Smoothheads
- Alepocephalus agassizii Agassiz's Smoothhead
- Alepocephalus australis Southern Smoothhead
- Alepocephalus bairdii Baird's Smoothhead
- Alepocephalus productus Smalleye Smoothhead
- Asquamiceps caeruleus Blueheaded Smoothhead
- Bajacalifornia arcylepis Network Slickhead
- Bajacalifornia megalops Bigeye Slickhead
- Bathyprion danae Fangtooth Smoothhead
- Bathytroctes macrolepis Koefoed's Smoothhead
- Bathytroctes michaelsarsi Michael Sar's Smoothhead
- Bathytroctes microlepis Smallscale Smoothhead
- Bathytroctes oligolepis Oddscale Smoothhead
- Bathytroctes squamosus Deepscale Smoothhead
- Conocara fiolenti Fiolenti's Smoothhead
- Conocara macroptera Longfin Smoothhead
- Conocara murrayi Murray's Smoothhead
- Conocara salmoneum Salmon Smoothhead
- Einara edentula Toothless Smoothhead
- Einara macrolepis Loosescale Smoothhead
- Leptoderma macrops Grenadier Smoothhead
- Mirognathus normani Norman's Smoothhead
- Narcetes stomias Blackhead Salmon
- Photostylus pycnopterus Starry Smoothhead
- Rinoctes nasutus Abyssal Smoothhead
- Rouleina attrita Softskin Smoothhead
- Rouleina maderensis Madeira Smoothhead
- Talismania antillarum Antillean Smoothhead
- Talismania homoptera Hairfin Smoothhead
- Talismania mekistonema Threadfin Smoothhead
- Xenodermichthys copei Bluntsnout Smoothhead