Tautoga onitis vs wrasse

Tautoga onitis and wrasse both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tautoga onitis	Yes	No	No	No
wrasse	Yes	No	No	No

As nouns, wrasse is a hypernym of Tautoga onitis; that is, wrasse is a word with a broader meaning than Tautoga onitis:

Tautoga onitis: large dark-colored food fish of the Atlantic coast of North America
wrasse: chiefly tropical marine fishes with fleshy lips and powerful teeth; usually brightly colored

Tautoga onitis (noun)	wrasse (noun)
large dark-colored food fish of the Atlantic coast of North America	chiefly tropical marine fishes with fleshy lips and powerful teeth; usually brightly colored