Alvania compacta is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.[1]

Alvania compacta
Shell of Alvania compacta
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Rissooidea
Family: Rissoidae
Genus: Alvania
Species:
A. compacta
Binomial name
Alvania compacta
(P. P. Carpenter, 1864)
Synonyms
  • Alvania acutelirata (P. P. Carpenter, 1864)
  • Alvania filosa P. P. Carpenter, 1864
  • Alvania fossilis Bartsch, 1911
  • Alvania iliuliukensis Bartsch, 1911
  • Alvania pedroana Bartsch, 1911
  • Rissoa acutelirata P. P. Carpenter, 1864 (Basionym, taxon does not belong to Rissoa)
  • Rissoa compacta P. P. Carpenter, 1864 superseded combination

Description

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The length of the shell varies between 2 mm and 3 mm.

It is sculptured like Alvania beanii, but with short, broad whorls. [2]

(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. [3]

Distribution

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This species occurs off Alaska, USA to Northern Baja California, Mexico

References

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  • 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.
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