Hypentelium nigricans vs hog sucker

Hypentelium nigricans and hog sucker both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hypentelium nigricans	Yes	No	No	No
hog sucker	Yes	No	No	No

As nouns, Hypentelium nigricans and hog sucker are synonyms defined as:

Hypentelium nigricans and hog sucker: widely distributed in warm clear shallow streams

Other synonyms of Hypentelium nigricans include hog molly.

Hypentelium nigricans (noun)	hog sucker (noun)
widely distributed in warm clear shallow streams	widely distributed in warm clear shallow streams