Hypentelium nigricans vs hog molly

Hypentelium nigricans and hog molly both are nouns.

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

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

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

Other synonyms of Hypentelium nigricans include hog sucker.

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