- Source: Alvania compacta
Alvania compacta is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Description
The length of the shell varies between 2 mm and 3 mm.
It is sculptured like Alvania beanii, but with short, broad whorls.
(Described as Rissoia acutelirata) The thin shell has a brownish ash-color. Its sculpture shows about 18 longitudinal, distant ribs, vanishing on the periphery, crossed by distant spiral lirae (15 on the body whorl). The shell is not nodose. It contains six convex whorls, rapidly enlarging, with a well-impressed suture.
Distribution
This species occurs off Alaska, USA to Northern Baja California, Mexico
References
Turgeon, D., Quinn, J. F., Bogan, A. E., Coan, E. V., Hochberg, F. G., Lyons, W. G., Mikkelsen, P. M., Neves, R. J., Roper, C. F. E., Rosenberg, G., Roth, B., Scheltema, A., Thompson, F. G., Vecchione, M., Williams, J. D. (1998). Common and scientific names of aquatic invertebrates from the United States and Canada: mollusks. 2nd ed. American Fisheries Society Special Publication, 26. American Fisheries Society: Bethesda, MD (USA). ISBN 1-888569-01-8. IX, 526 + cd-rom pp.
External links
Bartsch, P. (1911). The Recent and fossil mollusks of the genus Alvania from the west coast of America. Proceedings of the United States National Museum. 41(1863): 333-362
Kata Kunci Pencarian:
- Alvania compacta
- Alvania
- List of the Cenozoic life of California
- Merelina
- List of the prehistoric life of Alaska
- List of the Cenozoic life of Alaska
- 2015 in paleomalacology
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