Cydippea vs Cydippida

Cydippea and Cydippida both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cydippea	Yes	No	No	No
Cydippida	Yes	No	No	No

As nouns, Cydippea and Cydippida are synonyms defined as:

Other synonyms of Cydippea include Cydippidea, order Cydippea, order Cydippida, order Cydippidea.

Cydippea (noun)	Cydippida (noun)
ctenophores having two long pinnate tentacles	ctenophores having two long pinnate tentacles