Odostomia krausei

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Odostomia krausei
Odostomia krausei 001.png
Apertural view of the shell of Odostomia krausei
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Genus: Odostomia
Species:
O. krausei
Binomial name
Odostomia krausei
Clessin, 1900 [1]
Synonyms
  • Aartsenia krausei (Clessin, 1900)
  • Odostomia (Amaura) krausei Clessin, 1900

Odostomia krausei is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies. [2] [3]

Contents

Description

The elongate-conic shell is thick and heavy, rough through erosion, yellowish white. Its length measures 9.9 mm. The whorls of the protoconch are decollated in the type, judging from the pit in the apex they are probably deeply, obliquely immersed. The six whorls of the teleoconch are only moderately rounded, somewhat shouldered at the summit (surface decidedly eroded). The periphery and the base of the body whorl are well rounded, the latter with a minute umbilical chink. The aperture is ear-shaped, somewhat effuse anteriorly. The posterior angle is scarcely acute. The outer lip is very thick, reflexed. The pillar has a broad, strong, oblique fold, a little anterior to its insertion. The parietal wall is covered by a thick callus. [4]

Distribution

This species occurs in the Pacific Ocean off Killisnoo, Alaska, and Kodiak Island.

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References

  1. ↑ Clessin, Mart. Chem. Conch. Cab., 2d ed., Pyramid., 1900, p. 115, pl. XXVIII, fig. 1.
  2. ↑ Rosenberg, G. (2011). Odostomia krausei Clessin, 1900. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581227 on 2011-11-10
  3. ↑ 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.
  4. ↑ William Healy Dall and Paul Bartsch , "A Monograph of West American Pyramidellid Mollusks" , Smithsonian Institution, 1909
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