Colsyrnola brunnea

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Colsyrnola brunnea
Syrnola brunnea 001.png
Apertural view of a shell of Colsyrnola brunnea
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Genus: Colsyrnola
Species:
C. brunnea
Binomial name
Colsyrnola brunnea
(A. Adams, 1854) [1]
Synonyms
  • Obeliscus brunneusA. Adams, 1854 (basionym)
  • Obeliscus buxeusGould, 1861
  • Pyramidella fulvaSowerby II, 1865
  • Syrnola brunnea(A. Adams, 1854)

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

Contents

Description

The light brown, shining shell has an elongate-conic shape. The length of the shell measures 17.6 mm. The 2½ whorls of the protoconch are small and polished, and have a depressed helicoid shape. Their axis is at a right angle to the axis of the later whorls and about one-sixth immersed in the first of them. The sixteen whorls of the teleoconch are flattened, slightly shouldered, and rather low between the sutures. They are marked only by lines of growth and microscopic spiral striae. The sutures are subchanneled and minutely crenulated. The periphery and the base of body whorl are well rounded. They are marked like the spaces between the sutures. The aperture is suboval. The posterior angle is acute. The outer lip is thin. The columella is short, somewhat twisted and revolute. It bears a strong oblique fold a little anterior to its insertion. The parietal wall is covered by a thin callus. [3]

Distribution

This marine species occurs off Japan.

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References

  1. ↑ A. Adams in Sowerby Thes., 1854, p. 810, pl. CLXXI, fig. 35
  2. ↑ Rosenberg, G. (2015). Colsyrnola brunnea (A. Adams, 1854). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=739229 on 2015-04-16
  3. ↑ "P. Bartsch (1906), Notes on Japanese, Indo-Pacific and American Pyramidellidae; Proceedings of the U.S. National Museum vol. XXX no. 1452, p. 332-333" (PDF). Archived from the original (PDF) on 2012-06-05. Retrieved 2012-02-16.
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