What is "neritina"

Neritina \Ner`i*ti"na\, prop. n. (Zo["o]l.) A genus including numerous species of shells resembling Nerita in form. They mostly inhabit brackish water, and are often delicately tinted.

n. ornately marked and brightly colored snails of brackish waters

Neritina is a genus of small aquatic snails with an operculum, marine, brackish water, and sometimes freshwater gastropod mollusks in the family Neritidae, the nerites.

Neritina is the type genus of the tribe Neritinini.