sea snail vs snailfish

sea snail and snailfish both are nouns.

Word	Noun	Adjective	Verb	Adverb
sea snail	Yes	No	No	No
snailfish	Yes	No	No	No

As nouns, sea snail and snailfish are synonyms defined as:

sea snail and snailfish: small tadpole-shaped cold-water fishes with pelvic fins forming a sucker; related to lumpfish

Other synonyms of sea snail include Liparis liparis, seasnail.

sea snail (noun)	snailfish (noun)
small tadpole-shaped cold-water fishes with pelvic fins forming a sucker; related to lumpfish	small tadpole-shaped cold-water fishes with pelvic fins forming a sucker; related to lumpfish