Odostomia gouldii

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

Odostomia gouldii
Apertural view of a shell of Odostomia gouldii
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
Superfamily:
Pyramidelloidea
Family:
Pyramidellidae
Genus:
Odostomia
Species:
O. gouldii
Binomial name
Odostomia gouldii
Synonyms

Aartsenia gouldii Carpenter, 1864

Description

The elongate-conic shell is of medium size, measuring 6.1 mm. It is yellowish-white, the exterior surface marked by irregular tumescences, giving it a much worn appearance. The three whorls of the protoconch are deeply immersed, having their axis at about a right angle to the axis of the succeeding turns. The six whorls of the teleoconch are moderately well rounded and faintly shouldered at the summit. The sutures are simple and well marked. The periphery and the base of the body whorl is well rounded, the latter somewhat elongated. The umbilicus is faint. The pyriform aperture is quite large. The posterior angle is obtuse. The outer lip is moderately thick. The columella is very oblique, fairly strong, revolute, with a strong fold somewhat anterior to its insertion. The parietal wall is covered with a fairly strong callus.[4]

Distribution

This species occurs in the Pacific Ocean off Washington (state)

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References
  1. Carpenter, Ann. Mag. Nat, Hist., 3d ser., vol. 15, 1865, p. 29
  2. Rosenberg, G. (2011). Odostomia gouldii Carpenter, 1864. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581208 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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