cowry vs Cypraea tigris

cowry and Cypraea tigris both are nouns.

Word	Noun	Adjective	Verb	Adverb
cowry	Yes	No	No	No
Cypraea tigris	Yes	No	No	No

As nouns, Cypraea tigris is a hyponym of cowry; that is, Cypraea tigris is a word with a more specific, narrower meaning than cowry:

cowry: any of numerous tropical marine gastropods of the genus Cypraea having highly polished usually brightly marked shells
Cypraea tigris: cowrie whose shell is used for ornament

Other hyponyms of cowry include Cypraea moneta, money cowrie, tiger cowrie.

cowry (noun)	Cypraea tigris (noun)
any of numerous tropical marine gastropods of the genus Cypraea having highly polished usually brightly marked shells	cowrie whose shell is used for ornament