Amauropsis rossiana

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Amauropsis rossiana
Amauropsis rossiana 001.jpg
Shell of Amauropsis rossiana (specimen at the National Museum of Natural History, Smithsonian Institution)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Naticidae
Genus: Amauropsis
Species:
A. rossiana
Binomial name
Amauropsis rossiana
Smith, 1907
Synonyms

Amauropsis (Amauropsis) rossianaE.A. Smith, 1907 superseded combination

Contents

Amauropsis rossiana is a species of predatory sea snail, a marine gastropod mollusk in the family Naticidae, the moon snails. [1]

Description

The length of the shell attains 29 mm, its diameter 25 mm.

(Original description) The shell is globose, imperforate, and relatively thin, covered with a brownish-olive periostracum. Its surface features fine oblique growth lines, numerous faint spiral striations, and distinct oblique malleations on the body whorl and the penultimate whorl. The spire is moderately raised but eroded at the apex. There are approximately five whorls, though only the last two to three remain intact; these are very convex and separated by a distinctly deep suture.

The aperture is obliquely semicircular, bluish-white internally, and occupies nearly two-thirds of the shell’s total length. The columella is oblique, relatively straight in its upper part, curving anteriorly to merge with the lower margin. It is coated with a well-defined white callus that is thickened and reflexed, effectively covering the umbilical region. [2]

Distribution

This marine species occurs in the Weddell Sea off Antarctica.

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References

  1. ↑ Amauropsis rossiana E. A. Smith, 1907 . 9 January 2025. Retrieved through: World Register of Marine Species .
  2. ↑ Smith, E.A. (1907). Mollusca Gastropoda. National Antarctic Expedition 1901-1904 (Natural History, Zoology). p. 5.PD-icon.svg This article incorporates text from this source, which is in the public domain .
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