Callina rotula
| Callina rotula | |
|---|---|
| |
| Shell of Callina rotula | |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Geomitridae |
| Genus: | Callina |
| Species: | C. rotula
|
| Binomial name | |
| Callina rotula (R. T. Lowe, 1831)[1]
| |
| Synonyms | |
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_rotula_(Lowe,_1831)_-_Hygromiidae_-_Mollusc_shell.jpeg)
Callina rotula is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Geomitridae.[2]
It was first described by Richard Thomas Lowe, in 1831, as Helix rotula, part of the genus Helix.[1]
Habitat
This species is endemic to the Porto Santo Island, Madeira, Portugal, where it can be found under rocks.
Description
(Original description in Latin) The shell is rounded, conoidally flattened, somewhat flattened above, nearly perforate, keeled, rough, slightly shiny, and banded. It features a conoidal, highly obtuse spire and a indistinct suture. The whorls are flat, transversely striated, and covered with small granules; the body whorl is sharply keeled, though the keel becomes obsolete near the peristome.
The aperture is crescent-shaped and expanded outward. The peristome is thickened on the inside, sharp, and slightly expanded; at the inner angle, it is turned back, calloused, and covers the perforation.[1]
The shell of this snail has a discoid shape with small transversal grooves and some granules scattered along the sutures. This brownish-yellow shell is somewhat concave at its base. The oblique aperture has an oval shape. The shell is characteristic by its horizontal stripe on the last body whorl and two stripes at its base.
References
- ^ a b c
This article incorporates text from this source, which is in the public domain: Lowe, R. T. (1831). "Primitiae faunae et florae Maderae et Portus Sancti; sive species quaedam novae vel hactenus minus rite cognitae animalium et plantarum in his insulis degentium breviter descriptae". Transactions of the Cambridge Philosophical Society (in Latin). 4 (1). Cambridge: 53. Retrieved 3 August 2026 – via Biodiversity Heritage Library.
- ^ "Callina rotula (R. T. Lowe, 1831)". MolluscaBase. Retrieved 4 August 2026.
External links
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