long-fin tunny vs Thunnus alalunga

long-fin tunny and Thunnus alalunga both are nouns.

Word	Noun	Adjective	Verb	Adverb
long-fin tunny	Yes	No	No	No
Thunnus alalunga	Yes	No	No	No

As nouns, long-fin tunny and Thunnus alalunga are synonyms defined as:

long-fin tunny and Thunnus alalunga: large pelagic tuna the source of most canned tuna; reaches 93 pounds and has long pectoral fins; found worldwide in tropical and temperate waters

Other synonyms of long-fin tunny include albacore.

long-fin tunny (noun)	Thunnus alalunga (noun)
large pelagic tuna the source of most canned tuna; reaches 93 pounds and has long pectoral fins; found worldwide in tropical and temperate waters	large pelagic tuna the source of most canned tuna; reaches 93 pounds and has long pectoral fins; found worldwide in tropical and temperate waters