ladyfish vs tarpon

ladyfish and tarpon both are nouns.

Word	Noun	Adjective	Verb	Adverb
ladyfish	Yes	No	No	No
tarpon	Yes	No	No	No

As nouns, tarpon is a hypernym of ladyfish; that is, tarpon is a word with a broader meaning than ladyfish:

ladyfish: game fish resembling the tarpon but smaller
tarpon: large silvery game fish of warm Atlantic coastal waters especially off Florida

Other hypernyms of ladyfish include Tarpon atlanticus.

ladyfish (noun)	tarpon (noun)
game fish resembling the tarpon but smaller	large silvery game fish of warm Atlantic coastal waters especially off Florida