| Fossarina picta | |
|---|---|
 | |
| Original drawing of a shell of Fossarina picta | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Genus: | Fossarina |
| Species: | F. picta |
| Binomial name | |
| Fossarina picta A. Adams, 1864 | |
Fossarina picta is a species of very small sea snail, a marine gastropod mollusc or micromollusk in the family Trochidae, known as the top snails.[1]
Description
The shell grows to a length of 4 mm. The shell is depressed and turbinate, bearing a strong resemblance to Fossarina patula, though its spiral lirae are uniform and straightforward. The shell comprises four convex whorls, with a particularly sizable body whorl sporting a rounded margin. The lips are sharp and arcuate, while the aperture takes on a near-circular shape. The overall shell outline leans toward being more orbicular. Irregular purple-black radiating blotches are present on the shell, and the umbilical region typically displays a pale yellow hue.[1]
Distribution
This marine species occurs off the coat of South Korea and Japan.