Cydippea vs order Cydippidea

Cydippea and order Cydippidea both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cydippea	Yes	No	No	No
order Cydippidea	Yes	No	No	No

As nouns, Cydippea and order Cydippidea are synonyms defined as:

Cydippea and order Cydippidea: ctenophores having two long pinnate tentacles

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

Cydippea (noun)	order Cydippidea (noun)
ctenophores having two long pinnate tentacles	ctenophores having two long pinnate tentacles