Clupea harengus harengus vs Atlantic herring

Clupea harengus harengus and Atlantic herring both are nouns.

Word	Noun	Adjective	Verb	Adverb
Clupea harengus harengus	Yes	No	No	No
Atlantic herring	Yes	No	No	No

As nouns, Clupea harengus harengus and Atlantic herring are synonyms defined as:

Clupea harengus harengus and Atlantic herring: important food fish; found in enormous shoals in the northern Atlantic

Clupea harengus harengus (noun)	Atlantic herring (noun)
important food fish; found in enormous shoals in the northern Atlantic	important food fish; found in enormous shoals in the northern Atlantic