Odostomia herilda

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Odostomia herilda
Odostomia herilda 001.png
Apertural view of a shell of Odostomia herilda
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Genus: Odostomia
Species:
O. herilda
Binomial name
Odostomia herilda
Dall & Bartsch, 1909
Synonyms

Odostomia (Evalea) herilda Dall & Bartsch, 1909 (basionym)

Contents

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

Description

The light-yellow shell has an elongate-conic shape. lts length measures 3.8 mm. The whorls of the protoconch are deeply obliquely immersed in the first of the succeeding turns. The six whorls of the teleoconch are cylindric in outline, moderately rounded in the middle and very much so at the very strongly shouldered summit. The sutures are well impressed. The periphery is short, the base of the body whorl is well rounded, the latter narrowly umbilicated. The entire surface of the spire and the base is marked by numerous vertical lines of growth and exceedingly fine, closely spaced, wavy spiral striations. The aperture is ovate. The posterior angle is obtuse. The outer lip is thin. The columella is slender, somewhat sinuous, slightly reflected, provided with a deep-seated 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 San Diego, California.

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References

  1. ↑ Rosenberg, G. (2011). Odostomia herilda Dall & Bartsch, 1909. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581217 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. ↑ Dall & Bartsch, A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68, p. 197; 1909 Plate 23 # 8
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