order Cydippida vs order Cydippidea

order Cydippida and order Cydippidea both are nouns.

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

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

order Cydippida and order Cydippidea: ctenophores having two long pinnate tentacles

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

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