- catfish, mudcat - flesh of scaleless food fish of the southern United States; often farmed
--1 is a kind of freshwater fish
- wolffish, wolf fish, catfish - large ferocious northern deep-sea food fishes with strong teeth and no pelvic fins
--2 is a kind of blennioid fish, blennioid
--2 is a member of Anarhichas, genus Anarhichas - catfish, siluriform fish - any of numerous mostly freshwater bottom-living fishes of Eurasia and North America with barbels like whiskers around the mouth
--3 is a kind of soft-finned fish, malacopterygian
--3 is a member of Siluriformes, order Siluriformes
--3 has particulars: