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.(Welter-Schultes)
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).Animalbase (Welter-Schultes)
Habitat These gastropods are commonly found in damp, dim, and undisturbed areasSpecies Summary for Punctum Pygmaeum including the margins or wetlands, wet woodland, and leaf-littered forests.Anderson, R., (2016). Punctum (Punctum) pygmaeum (Draparnaud 1801). [In] MolluscIreland. Dwarf snail They may also live in mossy suburban gardens. They commonly lay their eggs underneath damp soil or rocks.Bard, Bruno, (1989). GROWTH AND REPRODUCTION OF THE MINUTE LAND SNAIL PUNCTUM PYGMAEUM
Distribution This species occurs in countries and islands including: Czech Republic Great Britain Ireland Slovakia Sweden, Norway, Denmark and Finland Poland UkraineBalashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109. Netherlands Latvia Bulgaria United States and other areas
References
External links
Punctum pygmaeum at Animalbase taxonomy, short description, distribution, biology, status (threats), images Punctum pygmaeum images at Encyclopedia of Life