neritine
/ˈnɛrɪtʌɪn/Zoology rare
noun
Any nerite of the genus Neritina and several closely related genera, especially Theodoxus and Clithon, of the family Neritidae (sometimes included in a subfamily Neritinae), the members of which usually inhabit fresh or brackish water.
Origin
Mid 19th century; earliest use found in The Penny Cyclopaedia. From Nerita + -ine, after French néritine and scientific Latin Neritina.