Aegista crassiuscula

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Aegista crassiuscula
Aegista crassiuscula 001.jpg
Shell of Aegista crassiuscula (holotype)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Stylommatophora
Family: Camaenidae
Subfamily: Bradybaeninae
Tribe: Aegistini
Genus: Aegista
Species:
A. crassiuscula
Binomial name
Aegista crassiuscula
(E. A. Smith, 1896)
Aegista crassiuscula - distribution.jpg
Synonyms [1]

Plectotropis crassiusculaE. A. Smith, 1896 (original combination)

Contents

Aegista crassiuscula is a species of air-breathing land snails, a terrestrial pulmonate gastropod in the family Camaenidae. [1]

Description

The diameter of the shell attains 9 mm, its height 7.5 mm.

(Description originally in Latin) The shell assumes an obtusely conical shape, featuring a prominent keel and a distinct umbilicus. The shell exhibits a brownish hue. Delicate growth lines and additional spirals, particularly evident above and below the midpoint of the body whorl, are intricately carved. The spirals themselves are convex, with a gentle, rounded contour. The shell contains approximately six whorls, from which small convexities gradually emerge, culminating in a keeled body whorl where the area above and below the keel is concavely impressed. Below the convexities, the whorl barely descends. The depth of the umbilicus measures about 1/5 diameter. The aperture appears oblique and sublunate, albeit small in size. The peristome presents a pale hue and is notably thickened, with minimal expansion and edges that are slightly flattened, connected by a thin callus. [2]

Distribution

This species occurs on the Selayar Islands, Sulawesi, Indonesia.

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References

  1. 1 2 MolluscaBase eds. (2024). MolluscaBase. Aegista crassiuscula (E. A. Smith, 1896). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1350988 on 2024-05-15
  2. ↑ Smith, E. A. (1896). On a collection of land-shells from the Islands of Selayar, Jampea, and Kalao. The Annals and Magazine of Natural History. Series 6, 18: 144–152. PD-icon.svg This article incorporates text from this source, which is in the public domain .
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