Selene vomer vs lookdown

Selene vomer and lookdown both are nouns.

Word	Noun	Adjective	Verb	Adverb
Selene vomer	Yes	No	No	No
lookdown	Yes	No	No	No

As nouns, Selene vomer and lookdown are synonyms defined as:

Selene vomer and lookdown: similar to moonfish but with eyes high on the truncated forehead

Other synonyms of Selene vomer include lookdown fish.

Selene vomer (noun)	lookdown (noun)
similar to moonfish but with eyes high on the truncated forehead	similar to moonfish but with eyes high on the truncated forehead