Ashfordia granulata

Ashfordia granulata, common name the "silky snail", is a species of medium-sized air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies.

Ashfordia granulata

Least Concern  (IUCN 3.1)
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Superfamily:
Helicoidea
Family:
Hygromiidae
Genus:
Ashfordia
Species:
A. granulata
Binomial name
Ashfordia granulata
(Alder, 1830)[1]

This species is sometimes placed in the genus Monacha and known as Monacha granulata.[2][3]

Distribution

This species is known to occur mainly in:

with small populations in:

  • France
  • Spain

Description

The 5-7 × 7-9 mm shell is whitish to pale brown and thin, translucent, with fine straight hairs with bulbous bases. There are 5.5-6 convex whorls with deep suture. The aperture is simple with a thin lip or without a lip . It is reflected only at the columellar side. The umbilicus is very narrow and partly covered by the reflected columellar margin. The mantle is with black spots.[4]

Ashfordia granulata shell

Life cycle

The size of the egg is 1 mm.[5]

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References
  1. Alder J. 1830. A catalogue of the land and fresh-water testaceous Mollusca found in the vicinity of Newcastle upon Tyne, with remarks. Transactions of the Natural History Society of Northumberland and Durham 1 (1): 26-41. London.
  4. Animalbase (Welter-Schultes)
  5. Heller J.: Life History Strategies. in Barker G. M. (ed.): The biology of terrestrial molluscs. CABI Publishing, Oxon, UK, 2001, ISBN 0-85199-318-4. 1-146, cited page: 428.


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