Merlangus merlangus vs Gadus merlangus

Merlangus merlangus and Gadus merlangus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Merlangus merlangus	Yes	No	No	No
Gadus merlangus	Yes	No	No	No

As nouns, Merlangus merlangus and Gadus merlangus are synonyms defined as:

Merlangus merlangus and Gadus merlangus: a food fish of the Atlantic waters of Europe resembling the cod; sometimes placed in genus Gadus

Other synonyms of Merlangus merlangus include whiting.

Merlangus merlangus (noun)	Gadus merlangus (noun)
a food fish of the Atlantic waters of Europe resembling the cod; sometimes placed in genus Gadus	a food fish of the Atlantic waters of Europe resembling the cod; sometimes placed in genus Gadus