- hagfish, hag, slime eels - eellike cyclostome having a tongue with horny teeth in a round mouth surrounded by eight tentacles; feeds on dead or trapped fishes by boring into their bodies
--1 is a kind of jawless vertebrate, jawless fish, agnathan
--1 is a member of Myxinidae, family Myxinidae
--1 has particulars: Myxine glutinosa; eptatretus; Myxinikela siroka