Amia calva vs ganoid

Amia calva and ganoid both are nouns.

Word	Noun	Adjective	Verb	Adverb
Amia calva	Yes	No	No	No
ganoid	Yes	No	No	No

As nouns, ganoid is a hypernym of Amia calva; that is, ganoid is a word with a broader meaning than Amia calva:

Amia calva: primitive long-bodied carnivorous freshwater fish with a very long dorsal fin; found in sluggish waters of North America
ganoid: primitive fishes having thick bony scales with a shiny covering

Other hypernyms of Amia calva include ganoid fish.

Amia calva (noun)	ganoid (noun)
primitive long-bodied carnivorous freshwater fish with a very long dorsal fin; found in sluggish waters of North America	primitive fishes having thick bony scales with a shiny covering