Assiminea

Assiminea
Assiminea grayana
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Caenogastropoda

clade Hypsogastropoda
clade Littorinimorpha

Superfamily: Rissooidea
Family: Assimineidae
Genus: Assiminea
Fleming, 1828
Type species
Assiminea grayiana Leach = Nerita syncera hepatica Gray 1821
species

See text

Synonyms

Syncera Gray 1821 (nomen nudum)

Assiminea is a genus of minute, salt marsh snails with an operculum, aquatic gastropod mollusks, or micromollusks, in the family Assimineidae.

Contents

Distribution and habitat

These snails are distributed worldwide. They live usually in brackish water and salt marshes of tropical and temperate regions, at beaches, in water and at land.

Description

These are very small to medium large snails, between 2 and 13 mm). Some adults don't exceed a size of 3 mm. The shape of the thin shells is somewhat ovately conical. The margin of the aperture is simple. The operculum is in most cases horny. [1] [2] The eyes are at the end of short, stout stalks. They feed on vegetable detritus and small algae. They lay their eggs in the mud and hatch as free-swimming larvae.

Species

According to the World Register of Marine Species, the following species with valid names are included within the genus Assiminea : [3]

The Indo-Pacific Molluscan Database also includes the following species with names in current use : [4]

Subgenus Metassiminea Thiele, 1927

The database ITIS also mentions the following species : [6]

References