Umbonium moniliferum
| Umbonium moniliferum | |
|---|---|
 | |
| Drawing with three views of a shell of Umbonium moniliferum | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Clade: | Vetigastropoda |
| Superfamily: | Trochoidea (superfamily) |
| Family: | Trochidae |
| Genus: | Umbonium |
| Species: | U. moniliferum |
| Binomial name | |
| Umbonium moniliferum (Lamarck, 1822) [1] | |
| Synonyms | |
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Umbonium moniliferum is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[2]
Description
The size of the shell varies between 10 mm and 20 mm. The solid shell is depressed with a very low, conoidal spire. Its color pattern is yellow, pinkish or whitish, closely tessellated with purple-brown or bluish slate-color, the basal callus purplish flesh-colored. Its surface is shining, polished, with spiral sulci above, generally 3-5 in number on the body whorl, often subobsolete. The suture is margined by a row of prominent tubercles, 8 to 11 on the body whorl. The shell contains about six whorls, the last rounded at the periphery, convex beneath. The callus is quite heavy, convex and circular. [3]
Distribution
This marine species occurs off Japan.
References
- ↑ Lamarck, Animaux sans vertèbres VII p.8
- ↑ Umbonium moniliferum (Lamarck, 1822). Retrieved through: World Register of Marine Species on 1 May 2010.
- ↑ H. Pilsbry (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
- MacDonald & Co (1979). The MacDonald Encyclopedia of Shells. MacDonald & Co. London & Sydney.
External links
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