Odostomia grippiana

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

Odostomia grippiana
Apertural view of Odostomia grippiana
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
Superfamily:
Pyramidelloidea
Family:
Pyramidellidae
Genus:
Odostomia
Species:
O. grippiana
Binomial name
Odostomia grippiana
Bartsch, 1912

Description

The large shell large measures 7.5 mm. It is umbilicated, yellowish-white. The nuclear whorls are decollated. The six post-nuclear whorls are decidedly, slopingly, tabulatedly shouldered at the summit, otherwise moderately rounded. They are marked by fine incremental lines and numerous, equal and equally spaced, slender, wavy, spiral threads, of which 6 occur upon the shoulder, and about 40 between the shoulder and the suture. The periphery and the moderately long base of the body whorl is well rounded, marked like the spire. The ear-shaped aperture is moderately large. The posterior angle is obtuse. The inner lip is moderately long, stout, curved, somewhat reflected, provided with a strong fold a little anterior to its insertion. The parietal wall is glazed with a thin callus.[3]

Distribution

This species occurs in the Pacific Ocean off British Columbia.

References
  1. Rosenberg, G. (2011). Odostomia grippiana Bartsch, 1912. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581211 on 2011-11-10
  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. Proceedings of the United States National Museum 42:286 Odostomia (Amaura) grippiana
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