Odostomia palmeri

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Odostomia palmeri
Odostomia palmeri 001.png
Apertural view of Odostomia palmeri
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Genus: Odostomia
Species:
O. palmeri
Binomial name
Odostomia palmeri
Bartsch, 1912
Synonyms

Odostomia (Evalea) palmeri Bartsch, 1912

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

Contents

Description

The shell is very small, measuring 1.4 mm. It is elongate-ovate, semitranslucent, bluish-white. The nuclear whorls are deeply, obliquely immersed in the first of the succeeding turns, above which only the tilted edge of the last volution projects. The four post-nuclear whorls are well rounded, feebly shouldered at the summit. They are marked by exceedingly fine, almost vertical lines of growth and microscopic spiral striations. The sutures are strongly impressed. The periphery and the rather long base of the body whorl are well rounded, marked like the spire. The aperture is very large, regularly ovate. The posterior angle is obtuse. The outer lip is thin. The inner lipis very oblique, almost straight, very slender and very slightly revolute. The parietal wall is glazed with a thin callus. [3]

Distribution

This species occurs off the head of the Gulf of California.

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References

  1. WoRMS (2011). Odostomia palmeri Bartsch, 1912. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=575884 on 2011-11-10
  2. Keen M. (1971). Sea shells of Tropical West America. Marine mollusks from Baja California to Perú. (2nd edit.). Stanford University Press pp. 1064:
  3. Paul Bartsch, Proceedings of the U.S. National Museum :42; 1912