platyctenean vs comb jelly

platyctenean and comb jelly both are nouns.

Word	Noun	Adjective	Verb	Adverb
platyctenean	Yes	No	No	No
comb jelly	Yes	No	No	No

As nouns, comb jelly is a hypernym of platyctenean; that is, comb jelly is a word with a broader meaning than platyctenean:

platyctenean: ctenophore have long tentacles and flattened body
comb jelly: biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arranged like teeth in a comb

Other hypernyms of platyctenean include ctenophore.

platyctenean (noun)	comb jelly (noun)
ctenophore have long tentacles and flattened body	biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arranged like teeth in a comb