Tomocyclus

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Tomocyclus
Tomocyclus simulacrum (MNHN-IM-2000-5561) 001.jpeg
Shell of Tomocyclus simulacrum (syntype at MNHN, Paris)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Architaenioglossa
Superfamily: Cyclophoroidea
Family: Megalomastomatidae
Genus: Tomocyclus
Crosse & P. Fischer, 1872
Synonyms [1]

Megalomastoma(Tomocyclus) Crosse & P. Fischer, 1872

Contents

Tomocyclus is a genus of land snails, terrestrial gastropod mollusks in the subfamily Megalomastomatinae of the family Megalomastomatidae. [1]

Description

(Original description in Latin) The shell is perforated, turreted, and truncated. The aperture is subcircular and small. The peristome is double-layered: the inner layer is briefly projected inward, while the outer layer is broadly expanded, resembling a leaf. The upper margin of the outer lip is interrupted, with a unique, incised, and hollowed-out appearance.

The operculum is circular, corneous but relatively thick, and spirally wound. It is slightly flattened anteriorly and reinforced posteriorly by a blunt, rounded process. The margins of the operculum exhibit a somewhat lamellar structure. [2]

Species

Synonyms

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References

  1. 1 2 MolluscaBase eds. (2022). MolluscaBase. Tomocyclus Crosse & P. Fischer, 1872. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=995577 on 2022-10-01
  2. ↑ Crosse, H. & Fischer, P. (1872). "Diagnoses Molluscorum novorum, reipublicae Maxicanae incolarum". Journal de Conchyliologie. 20 (1): 76. Retrieved 31 January 2025.{{cite journal}}: CS1 maint: multiple names: authors list (link)PD-icon.svg This article incorporates text from this source, which is in the public domain .
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