Xerotricha renei

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Xerotricha renei
Shell of Xerotricha renei (specimen at MNHN, Paris)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Geomitridae
Genus: Xerotricha
Species:
X. renei
Binomial name
Xerotricha renei
(Fagot, 1882)
Synonyms

Helix renei Fagot, 1882 superseded combination

Xerotricha renei is a species of air-breathing land snail, terrestrial pulmonate gastropod mollusks in the family Geomitridae,[1]

Description

The length of the shell attains 5 mm, its diameter 7 mm.

(Original description in Latin) The shell is solidly built and shaped in a rounded-convex form, variegated with shades of brown and gray. It features an open umbilicus that extends all the way to the apex. Its surface is marked by irregular fine ribs and striae, and it is adorned with minute dots within the spaces between the striae, as well as sparse hairs.

The spire is convex, ending in a prominent, nipple-shaped apex. It consists of five convex whorls that are separated by an impressed suture; the initial whorls increase slowly in size, while the remaining ones expand rapidly. The body whorl is larger, rounded, and becomes dilated and descending as it approaches the aperture.

The margins of the aperture lie close together, with the columellar margin slightly reflected over the umbilicus.

This species, dedicated to Jules-René Bourguignat, may be distinguished by its convex spire, the complete absence of any band or spotting, its color of an earthy yellow tinged with grayish tones, its whorls that increase in size differently, and its aperture that descends lower and is more regularly rounded, among other features. [2]

Distribution

This species is endemic to France and occurs off Haute-Garonne; also in French mainland, Spanish mainland and Central Europe.

References

  1. ↑ MolluscaBase eds. (2023). MolluscaBase. Xerotricha renei (Fagot, 1882). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1002572 on 2023-09-21
  2. ↑ Fagot, P. (1882). Mollusques du Pic du Gar (Haute-Garonne). Bulletin de la Société d'Histoire Naturelle de Toulouse. 16: 66-78. Toulouse Public Domain This article incorporates text from this source, which is in the public domain.
  • Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16, 2017