Odostomia cookeana

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Odostomia cookeana
Odostomia cookeana 001.png
Apertural view of Odostomia cookeana
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Genus: Odostomia
Species:
O. cookeana
Binomial name
Odostomia cookeana
Bartsch, 1910

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

Contents

The epithet in this species refers to Mss J. M. Cooke, of San Diego,

Description

The shell is elongate-ovate, very narrowly umbilicated, yellowish-white. It measures 3.2 mm. The nuclear whorls are very obliquely immersed in the first of the succeeding turns. The four post-nuclear whorls are very high between the sutures where they are very moderately rounded. They are marked by rather strong incremental lines and very numerous fine spiral striations. The periphery and the base of the body whorl are somewhat inflated, the latter strongly rounded and marked like the spire. The oval aperture is large. The posterior angle is acute. The outer lip is thin. The inner lipis decidedly oblique, quite strongly curved in the middle and somewhat reflected. It is provided with an oblique fold at its insertion, which is strong within and tapers to a vanishing point at the free edge of the columella. The parietal wall glazed with a thin callus. [3]

Distribution

This species occurs in the Pacific Ocean off Alaska.

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References

  1. ↑ Rosenberg, G. (2011). Odostomia cookeana Bartsch, 1910. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581123 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
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