fish family - any of various families of fish

Cyclostomata, order Cyclostomata - primitive jawless aquatic vertebrate: lampreys; hagfishes

hagfish, slime eels, hag - 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

genus Myxine, Myxine - type genus of the Myxinidae (typical hagfishes)

genus Eptatretus - a genus of fossil fish of the family Myxinidae

genus Myxinikela, Myxinikela - fossil hagfishes