Odostomia cypria

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Odostomia cypria
Odostomia cypria 001.png
Apertural view of Odostomia cypria
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Genus: Odostomia
Species:
O. cypria
Binomial name
Odostomia cypria
Dall & Bartsch, 1912
Synonyms

Odostomia (Evalea) cypriaDall & Bartsch, 1912

Odostomia cypria is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies. [1] [2]

Contents

Description

The shell is of medium size, measuring 4 mm. The shell is narrowly elongate-ovate, umbilicated, yellowish-white. The nuclear whorls are decollated. The five post-nuclear whorls lie rather high between the sutures. They are moderately rounded, very feebly shouldered at the summit,. They are marked by fine lines of growth and numerous exceedingly fine, closely spaced, spiral striations. The sutures are very slightly constricted. The periphery of the body whorl is very rounded. The base of the shell is moderately long, well rounded and narrowly umbilicated. The aperture is broadly oval, effuse anteriorly. The posterior angle is obtuse;. The outer lip is thin. The inner lip is very oblique, slightly curved and revolute, not appressed to the base. It is provided with a very deep-seated feeble fold at its insertion. The parietal wall is covered with a thick callus, which renders the peritreme complete. [3]

Distribution

This species occurs in the Pacific Ocean off British Columbia.

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References

  1. Rosenberg, G. (2011). Odostomia cypria Dall & Bartsch, 1912. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581125 on 2011-10-26
  2. 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.
  3. Paul Bartsch, Proceedings of the U.S. National Museum :42; 1912