Umbonium moniliferum
Umbonium moniliferum | |
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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
Wikimedia Commons has media related to Umbonium moniliferum. |