oarfish vs Regalecus glesne

oarfish and Regalecus glesne both are nouns.

Word	Noun	Adjective	Verb	Adverb
oarfish	Yes	No	No	No
Regalecus glesne	Yes	No	No	No

As nouns, oarfish and Regalecus glesne are synonyms defined as:

oarfish and Regalecus glesne: thin deep-water tropical fish 20 to 30 feet long having a red dorsal fin

Other synonyms of oarfish include king of the herring, ribbonfish.

oarfish (noun)	Regalecus glesne (noun)
thin deep-water tropical fish 20 to 30 feet long having a red dorsal fin	thin deep-water tropical fish 20 to 30 feet long having a red dorsal fin