Equetus pulcher vs drumfish

Equetus pulcher and drumfish both are nouns.

Word	Noun	Adjective	Verb	Adverb
Equetus pulcher	Yes	No	No	No
drumfish	Yes	No	No	No

As nouns, drumfish is a hypernym of Equetus pulcher; that is, drumfish is a word with a broader meaning than Equetus pulcher:

Equetus pulcher: a kind of drumfish
drumfish: small to medium-sized bottom-dwelling food and game fishes of shallow coastal and fresh waters that make a drumming noise

Other hypernyms of Equetus pulcher include drum.

Equetus pulcher (noun)	drumfish (noun)
a kind of drumfish	small to medium-sized bottom-dwelling food and game fishes of shallow coastal and fresh waters that make a drumming noise