grampus vs Grampus griseus

grampus and Grampus griseus both are nouns.

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

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

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

grampus (noun)	Grampus griseus (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