smallmouthed black bass vs smallmouthed bass

smallmouthed black bass and smallmouthed bass both are nouns.

Word	Noun	Adjective	Verb	Adverb
smallmouthed black bass	Yes	No	No	No
smallmouthed bass	Yes	No	No	No

As nouns, smallmouthed black bass and smallmouthed bass are synonyms defined as:

smallmouthed black bass and smallmouthed bass: a variety of black bass; the angle of the jaw falls below the eye

Other synonyms of smallmouthed black bass include Micropterus dolomieu, smallmouth, smallmouth bass, smallmouth black bass.

smallmouthed black bass (noun)	smallmouthed bass (noun)
a variety of black bass; the angle of the jaw falls below the eye	a variety of black bass; the angle of the jaw falls below the eye