| 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]
This marine species occurs off Japan.
The Trochidae, common name top-snails or top-shells, are a taxonomic family of very small to large sea snails, marine gastropod molluscs in the clade Vetigastropoda.
Umbonium, sometimes known as the "button top shells", is a genus of sea snails, marine gastropod molluscs in the family Trochidae, the top snails.
Ethalia bellardii is a species of sea snail with a top-shaped shell, a marine gastropod mollusk in the family Trochidae, the top snails.
Ethalia is a genus of sea snails, marine gastropod mollusks in the subfamily Umboniinae of the family Trochidae, the top snails.
Colsyrnola brunnea is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.
Tibersyrnola cinnamomea is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.
Conradia doliaris is a species of small sea snail or micromollusc, a marine gastropod mollusc in the family Conradiidae.
Ethaliella is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.
Ethalia carneolata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Ethalia guamensis, common name the Guam button top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Ethalia minolina is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Ethalia striolata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Ethaliella pulchella is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Zethalia zelandica, common name the wheel shell, is a species of sea snail, a marine gastropod mollusk, in the family Trochidae, the top snails.
Herpetopoma rubrum is a species of sea snail, a marine gastropod mollusk in the family Chilodontidae.
Liotina tantilla is a species of small sea snail, a marine gastropod mollusk, in the family Liotiidae.
Ethalia nitida is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Ethalia polita is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Ethalia rufula is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Ethalia sanguinea is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top-snails.