clinid fish vs blennioid

clinid fish and blennioid both are nouns.

Word	Noun	Adjective	Verb	Adverb
clinid fish	Yes	No	No	No
blennioid	Yes	No	No	No

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

clinid fish: mostly small blennioid fishes of coral reefs and seagrass beds
blennioid: elongated mostly scaleless marine fishes with large pectoral fins and reduced pelvic fins

Other hypernyms of clinid fish include blennioid fish.

clinid fish (noun)	blennioid (noun)
mostly small blennioid fishes of coral reefs and seagrass beds	elongated mostly scaleless marine fishes with large pectoral fins and reduced pelvic fins