Grampus griseus vs grampus

Grampus griseus and grampus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Grampus griseus	Yes	No	No	No
grampus	Yes	No	No	No

As nouns, Grampus griseus and grampus are synonyms defined as:

Grampus griseus and grampus: slaty-grey blunt-nosed dolphin common in northern seas

Grampus griseus (noun)	grampus (noun)
slaty-grey blunt-nosed dolphin common in northern seas	slaty-grey blunt-nosed dolphin common in northern seas
	predatory black-and-white toothed whale with large dorsal fin; common in cold seas