Species of gastropod
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]
Habitat
These gastropods are commonly found in damp, dim, and undisturbed areas[4] including the margins or wetlands, wet woodland, and leaf-littered forests.[5] They may also live in mossy suburban gardens. They commonly lay their eggs underneath damp soil or rocks.[6]
Distribution
This species occurs in countries and islands including:
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)
- ^ Species Summary for Punctum Pygmaeum
- ^ Anderson, R., (2016). Punctum (Punctum) pygmaeum (Draparnaud 1801). [In] MolluscIreland. Dwarf snail [1]
- ^ Bard, Bruno, (1989). GROWTH AND REPRODUCTION OF THE MINUTE LAND SNAIL PUNCTUM PYGMAEUM [2]
- ^ Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
External links
