Prosipho gracilis

Prosipho gracilis
Drawing of Prosipho gracilis (holotype)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Family: Prosiphonidae
Genus: Prosipho
Species:
P. gracilis
Binomial name
Prosipho gracilis
Thiele, 1912

Prosipho gracilis is a species of sea snail, a marine gastropod mollusk in the family Prosiphonidae, the true whelks.[1]

Description

(Original description in German) Some shells are considerably more slender than Prosipho antarctidis (Pelseneer, 1903), reaching about 6 mm in height and 1.8 mm in width. The first two whorls are smooth, less spherical, and narrower. The following 4–4.5 whorls have three strong spiral ridges. During the fourth whorl, the suture becomes attached. A few weaker ridges are present on the underside of the body whorl. Fine, more or less regular folds run down over the whorls. In well-preserved specimens, short, bristle-like outgrowths of the periostracum stand on the ridges at the intersections. The aperture is quite narrow, tapering downward into a slightly oblique, moderately elongated siphonal canal. [2]

Distribution

This species occurs in the Davis Sea, Antarctica.

References

  1. ^ Prosipho gracilis Thiele, 1912. Retrieved through: World Register of Marine Species on 17 April 2010.
  2. ^ Thiele, J. (1912). "Die antarktischen Schnecken und Muscheln. Deutsche Südpolar-Expedition, 1901-1903, im Auftrage des Reichsamtes des Innern. Wissenschaftliche Ergebnisse. 13". Zoologie. 5 (2). Public Domain This article incorporates text from this source, which is in the public domain.
  • Engl, W. (2012). Shells of Antarctica. Hackenheim: Conchbooks. 402 pp.
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