Mya arenaria vs Mya

Mya arenaria and Mya both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mya arenaria	Yes	No	No	No
Mya	Yes	No	No	No

Mya arenaria (noun)	Mya (noun)
an edible clam with thin oval-shaped shell found in coastal regions of the United States and Europe	type genus of the family Myacidae