Batrachoididae vs fish family

Batrachoididae and fish family both are nouns.

Word	Noun	Adjective	Verb	Adverb
Batrachoididae	Yes	No	No	No
fish family	Yes	No	No	No

As nouns, fish family is a hypernym of Batrachoididae; that is, fish family is a word with a broader meaning than Batrachoididae:

Batrachoididae (noun)	fish family (noun)
toadfishes; related to anglers and batfishes	any of various families of fish