Fossarina patula
From Wikipedia, the free encyclopedia
| Fossarina patula | |
|---|---|
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| Drawing of a shell of Fossarina patula | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Genus: | Fossarina |
| Species: | F. patula |
| Binomial name | |
| Fossarina patula (A. Adams & Angas, 1863) | |
| Synonyms | |
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Fossarina patula is a species of very small sea snail, a marine gastropod mollusc or micromollusk in the family Trochidae, the top snails.[1]
The shell grows to a length of 6 mm. The shell is widely umbilicated, with alternate larger and smaller tuberculated spiral ribs. The ribs are simple on the base. The umbilicus is acutely carinate-margined. The shell is whitish, sparsely maculated with dark brown. The three whorls are convex. The outer lip is ascending posteriorly.