wolffish vs malacopterygian

wolffish and malacopterygian both are nouns.

Word	Noun	Adjective	Verb	Adverb
wolffish	Yes	No	No	No
malacopterygian	Yes	No	No	No

As nouns, malacopterygian is a hypernym of wolffish; that is, malacopterygian is a word with a broader meaning than wolffish:

wolffish: large elongate scaleless oceanic fishes with sharp teeth and a long dorsal fin that resembles a sail
malacopterygian: any fish of the superorder Malacopterygii

Other hypernyms of wolffish include soft-finned fish.

wolffish (noun)	malacopterygian (noun)
large ferocious northern deep-sea food fishes with strong teeth and no pelvic fins	any fish of the superorder Malacopterygii
large elongate scaleless oceanic fishes with sharp teeth and a long dorsal fin that resembles a sail