Setia ambigua

Setia ambigua is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.

Description
Members of the order Neotaenioglossa are mostly gonochoric and broadcast spawners. Life cycle: Embryos develop into planktonic trochophore larvae and later into juvenile veligers before becoming fully grown adults.

Distribution
Mediterranean Sea.