Rissoina (Zebinella) trigonostoma O. Boettger, 1893 Zebinella trigonostoma is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae.

[1] The length of the shell attains 3¼ - 4 mm; its diameter 1½ - 1¾ mm.

This marine species occurs off the Philippines.

This Rissoinidae-related article is a stub.

You can help Wikipedia by expanding it.