Malopterurus vs fish genus

Malopterurus and fish genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Malopterurus	Yes	No	No	No
fish genus	Yes	No	No	No

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

Malopterurus (noun)	fish genus (noun)
electric catfish	any of various genus of fish