Alvania lactea
Species of gastropod
From Wikipedia, the free encyclopedia
Alvania lactea is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.[1]
| Alvania lactea | |
|---|---|
| |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Rissoidae |
| Genus: | Alvania |
| Species: | A. lactea |
| Binomial name | |
| Alvania lactea (Michaud, 1832) | |
| Synonyms | |
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Description
The length of the shell varies between 4 mm and 8 mm.
The thin shell is subtranslucid to opaque. It is feebly longitudinally and spirally closely costellate. The color is yellowish white or white. The shell contains 5-6, subconvex whorls with linear suture. The outer lip is scarcely thickened externally.[2]
Distribution
This species occurs in the North Sea; also off Morocco and in the Black Sea; in the Mediterranean Sea off Greece.
Fossils were found in Pleistocene-Pliocene strata in the Netherlands and Pleistocene strata near Saint-Malo, France.
