ribbonfish vs Regalecus glesne

ribbonfish and Regalecus glesne both are nouns.

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

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

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

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

ribbonfish (noun)	Regalecus glesne (noun)
marine fish having a long compressed ribbonlike body	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