class Oligochaeta vs fishing worm

class Oligochaeta and fishing worm both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Oligochaeta	Yes	No	No	No
fishing worm	Yes	No	No	No

class Oligochaeta (noun)	fishing worm (noun)
earthworms	terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers