Selene vomer vs lookdown fish

Selene vomer and lookdown fish both are nouns.

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

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

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

Other synonyms of Selene vomer include lookdown.

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