Pecten magellanicus vs giant scallop

Pecten magellanicus and giant scallop both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pecten magellanicus	Yes	No	No	No
giant scallop	Yes	No	No	No

As nouns, Pecten magellanicus and giant scallop are synonyms defined as:

Pecten magellanicus and giant scallop: a large scallop inhabiting deep waters of the Atlantic coast of North America

Other synonyms of Pecten magellanicus include sea scallop.

Pecten magellanicus (noun)	giant scallop (noun)
a large scallop inhabiting deep waters of the Atlantic coast of North America	a large scallop inhabiting deep waters of the Atlantic coast of North America