Punctum pygmaeum
| Punctum pygmaeum | |
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| Five views of a shell of Punctum pygmaeum | |
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| Species: | P. pygmaeum
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| Binomial name | |
| Punctum pygmaeum (Draparnaud, 1801)[1]
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Helix pygmæa Draparnaud, 1801 | |
Punctum pygmaeum is a species of very small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Punctidae, the dot snails.
Shell description
For terms see gastropod shell The shell is very small, 1.2-1.6 mm in width.[2]
The 0.6-0.8 x 1.2-1.6 mm shell is almost flat, extremely densely and regularly striated, appearing silky shiny light horny brown. There are 3-3.5 moderately convex whorls, the aperture is rounded, with a thin margin which is not reflected and without a lip. The umbilicus is wide (25% of shell diameter).[3]
Distribution
This species occurs in countries and islands including:
- Czech Republic
- Great Britain
- Ireland
- Slovakia
- Poland
- Ukraine[4]
- Netherlands
- Latvia
- Bulgaria
- and other areas
References
- ^ Draparnaud J. P. R. 1801. Tableau des mollusques terrestres et fluviatiles de la France. pp. [1-2], 1-116. Montpellier, Paris. (Renaud; Bossange, Masson & Besson).
- ^ (Welter-Schultes)
- ^ Animalbase (Welter-Schultes)
- ^ Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
External links
- Punctum pygmaeum at Animalbase taxonomy,short description, distribution, biology,status (threats), images
- Punctum pygmaeum images at Encyclopedia of Life
Wikimedia Commons has media related to Punctum pygmaeum.