Oscilla annulata
| Oscilla annulata | |
|---|---|
 | |
| Drawing of a shell of Oscilla annulata | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Heterobranchia clade Euthyneura clade Panpulmonata |
| Superfamily: | Pyramidelloidea |
| Family: | Pyramidellidae |
| Genus: | Oscilla |
| Species: | O. annulata |
| Binomial name | |
| Oscilla annulata A. Adams 1855 | |
| Synonyms | |
|
Pyramidella (Oscilla) annulata A. Adams 1855 (basionym) | |
Oscilla annulata is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. [1]
Description
The length of the whitish shell measures 5 mm. The numerous whorls of the teleoconch are flattened, and spirally ribbed. Their interstices are longitudinally striated. The columella has a single posterior plication. The lip is subcrenulated, the interior lirate. [2]
Distribution
This marine species occurs in the demersal zone off the Philippines, Singapore and Japan.