Odostomia kadiakensis

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

Odostomia kadiakensis
Apertural view of a shell of Odostomia kadiakensis
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
Superfamily:
Pyramidelloidea
Family:
Pyramidellidae
Genus:
Odostomia
Species:
O. kadiakensis
Binomial name
Odostomia kadiakensis
Dall & Bartsch, 1909
Synonyms

Odostomia (Evalea) kadiakensis Dall & Bartsch, 1909

Description

The very regularly elongate conic shell is umbilicated, yellowish white. It measures 5.2 mm. The whorls of the protoconch are decollated. The six whorls of the teleoconch are moderately rounded. The spiral sculpture is marked by vertical lines of growth and numerous, exceedingly fine, wavy, spiral striations. The sutures are deeply impressed and not strongly contracted (as in O. aleutica). The periphery of the body whorl is rounded. The base of the shell is strongly inflated and marked like the spire. The umbilicus is narrow, partly covered by the strongly reflected columella. The aperture is ovate, effuse anteriorly. The posterior angle is acute. The outer lip is thin. The columella is thin, very oblique, strongly curved anteriorly and decidedly reflected, provided with a weak fold a little anterior to its insertion.[3][4]

Distribution

The type specimen of this species was found off Kodiak Island, Gulf of Alaska.

References
  1. Rosenberg, G. (2011). Odostomia kadiakensis Dall & Bartsch, 1909. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581223 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. William Healy Dall and Paul Bartsch , "A Monograph of West American Pyramidellid Mollusks" , Smithsonian Institution, 1909
  4. Dall & Bartsch, A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68, p. 197;1909 Plate 22 # 9
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