Amphicyclotus boucardi

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Amphicyclotus boucardi
Amphicyclotus boucardi 001.jpg
Shell of Amphicyclotus boucardi (specimen at Naturalis Biodiversity Center)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Architaenioglossa
Superfamily: Cyclophoroidea
Family: Neocyclotidae
Genus: Amphicyclotus
Species:
A. boucardi
Binomial name
Amphicyclotus boucardi
(L. Pfeiffer, 1857)
Synonyms

Cyclostoma (Cyclophorus) boucardiL. Pfeiffer, 1857 (original combination)

Contents

Amphicyclotus boucardi is a species of tropical land snails with gills and an operculum, terrestrial gastropod mollusks in the family Neocyclotidae. [1]

Description

The height of the shell attains 19 mm, its diameter 35 mm.

The shell is broadly umbilicate, depressed-conical, and quite solid. Its entire surface is marked by malleations, creating a distinctly rough texture, and subtle, spaced, obsolete striae. The shell is olive-white, covered by a thin, persistent, light tawny-brown epidermis with contrasting whitish spiral bands.

The spire is briefly conical, terminating in an obtuse apex that is purplish-pink transitioning to tawny. The suture is well-defined and deep. The shell has 5.5 moderately convex, rapidly expanding whorls, with the body whorl rounded and slightly flattened basally, where the epidermis becomes light olive-green. The aperture is slightly oblique, subangular-rounded, and glossy white internally. The peristome is simple, straight, and very slightly angled at its upper part, which extends beyond the columellar edge. It is continuous and shares the aperture's coloration, except for the epidermal-colored outer margin. The edges are joined by a thin callus deposit. The columellar edge is slightly arcuate, subdilated, and slightly thickened internally, but remains thin at its outer margin. The basal and outer edges are sharp.

The operculum is orbicular, thin at the edge but solid centrally, corneous in texture and light tawny. Its outer surface has numerous tightly coiled whorls, which abruptly terminate, and a concave central region. The whorl edges form a lamelliform projection. The inner surface is thickened centrally, forming a convex, salient, flattened nipple-like structure, surrounded by distinct concentric striae. The remaining surface is smooth and polished. [2]

Distribution

This species was found in the state Vera Cruz, Mexico.

References

  1. Amphicyclotus boucardi (L. Pfeiffer, 1857) . 19 March 2025. Retrieved through: World Register of Marine Species .
  2. Fischer, Paul, - Crosse, Hippolyte, - Milne-Edwards, H. (Henri) (1900). Études sur les mollusques terrestres et fluviatales du Mexique et du Guatemala. Paris: Imprimerie impériale. p. 143. Retrieved 19 March 2025.{{cite book}}: CS1 maint: multiple names: authors list (link)PD-icon.svg This article incorporates text from this source, which is in the public domain .