Odostomia schrami

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Odostomia schrami
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Genus: Odostomia
Species:
O. schrami
Binomial name
Odostomia schrami
van Aartsen, Gittenberger E. & Goud, 1998 [1]
Synonyms

Odostomia (Odostomia) schrami van Aartsen, Gittenberger E. & Goud, 1998

Contents

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

Description

The slender, white shell has an oval shape and is glossy and transparent. Its length measures 3 mm, of which ⅔ are occupied by the body whorl. The whorls of the protoconch are intorted, somewhat obliquely immersed in the first turn of the teleoconch. The 4½ to 5½ whorls of the teleoconch are slightly convex with a smooth sculpture. The growth lines are directed at right angles to the growth direction of the cone, but become flexuous or sinuous on the lower whorls. The base of the body whorl is well rounded. The sutures are well impressed. The narrowly oval aperture is rather large and occupies about ⅓ of the total length, and is somewhat effuse anteriorly The posterior angle is obtuse. The outer lip is thin. The base of the shell is quite short, rounded, and lacking an umbilicus. The columellar tooth is conspicuous and in a rather high position on the columella. [3]

Distribution

This species occurs in the Atlantic Ocean off Mauritania at depths between 15 mm and 75 m.

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References

  1. van Aartsen, Gittenberger E. & Goud (1998). Zoologische Verhandelingen (Leiden) 321 : 1-57. World Register of Marine Species, Retrieved 2011-11-10.
  2. WoRMS (2010). Odostomia schrami van Aartsen, Gittenberger E. & Goud, 1998. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=458517 on 2011-11-10
  3. J.J. van Aartsen, E. Gittenberger & J. Goud, Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 1); CANCAP-project . Contributions, no. 119 ; Zool . Verh. Leiden 321 (1998)