Biology:Ashfordia granulata

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Short description: Species of gastropod

Ashfordia granulata
Ashfordia granulata (Alder, 1830) cap gris-nez 2015-11-06.JPG
Scientific classification
Kingdom:
Animalia
Phylum:
Class:
(unranked):
Superfamily:
Family:
Genus:
Species:
A. granulata
Binomial name
Ashfordia granulata
(Alder, 1830)[1]

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.

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:

  • Ireland
  • Great Britain, England

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]

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.
  2. "Monacha granulata". http://zipcodezoo.com/Animals/M/Monacha_granulata/. 
  3. "Archived copy". http://ads.ahds.ac.uk/catalogue/adsdata/cbaresrep/pdf/011/01113001.pdf. 
  4. "AnimalBase :: Ashfordia granulata species homepage". http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/species?id=1319. 
  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.

External links

Wikidata ☰ Q4805022 entry