clinid fish vs blennioid fish

clinid fish and blennioid fish both are nouns.

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

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

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

Other hypernyms of clinid fish include blennioid.

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