Ethalia omphalotropis
From Wikipedia, the free encyclopedia
| Ethalia omphalotropis | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Genus: | Ethalia |
| Species: | E. omphalotropis |
| Binomial name | |
| Ethalia omphalotropis A. Adams, 1863 | |
| Synonyms | |
|
Umbonium omphalotropis (A. Adams, 1863) | |
Ethalia omphalotropis is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[1]
The small, semi-transparent shell has an ovate-discoidal shape. Its colour is white and entirely devoid of coloured markings. The 3½ convex whorls increase rapidly in size with deeply marked sutures. The body whorl has a spherical periphery. This species has a peculiar sharp keel surrounding the umbilicus. The aperture has an almost circular shape.[2]