Belt snails
Belt snails | ||||||||||||
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Belt snail ( Helicodonta obvoluta ) |
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Helicodontidae | ||||||||||||
Kobelt , 1904 |
The belt snails ( Helicodontidae) are a family from the suborder of the land snails (Stylommatophora). The family includes around 16 species.
features
The housings are thick disk-shaped, flat disk-shaped to flat-conical. The housing diameter of the adult animals reaches up to 20 mm. The navel is narrow to moderately wide and always unlocked. The whorls are convexly rounded or keeled. The edge of the mouth is more or less clearly turned over and can be lipped or pulled out into teeth. When it comes to the housing, brown tones predominate. The ornamentation is limited to more or less distinct growth stripes. In some species, long hairs sit on the surface of the housing. The animals close their housing in summer rest phases and / or in the winter break with a chalky epiphragma .
Occurrence, way of life and distribution
The species in the family live under litter and dead wood in forests, under stones, between rocks and boulders. They live depending on the type of mushrooms, detritus and also fresh plants. The main area of distribution is the eastern Mediterranean region, the southern Balkan Peninsula and Asia Minor. Some species are also common in the southern and western Alps. Only one species penetrates as far as Central Europe and southern England (probably a relic occurrence).
Systematics
The family of Helicodontidae is still treated by some authors as a subfamily of leaf snails (Hygromiidae). In more recent works, however, it is viewed as an independent family within the Helicoidea . The fauna Europaea and Bouchet and Rocroi even divide the belt snails into two subfamilies, Helicodontinae and Lindholmiolinae Schileyko, 1978.
- Belt snails (Helicodontidae Kobelt, 1904)
- Helicodontinae Kobelt, 1904
- Genus Atenia Gittenberger, 1968
- Genus Darderia Altaba, 2006
- Genus Drepanostoma Porro, 1836
- Genus Falkneria H. Nordsieck, 1989
- Genus Helicodonta Férussac, 1821
- Belt snail ( Helicodonta obvoluta )
- Subfamily Lindholmiolinae Schileyko, 1978
- Genus Lindholmiola Hesse, 1931
- Kissing island snail ( Lindholmiola lens )
- Genus Lindholmiola Hesse, 1931
- Helicodontinae Kobelt, 1904
literature
- Philippe Bouchet & Jean-Pierre Rocroi: Part 2. Working classification of the Gastropoda . Malacologia, 47: 239-283, Ann Arbor 2005, ISSN 0076-2997
- Rosina Fechter and Gerhard Falkner: molluscs. 287 pp., Mosaik-Verlag, Munich 1990 (Steinbach's Nature Guide 10), ISBN 3-570-03414-3
- Jürgen H. Jungbluth and Dietrich von Knorre: Common names of land and freshwater mollusks in Germany (Gastropoda et Bivalvia). Mollusca, 26 (1): 105-156, Dresden 2008 ISSN 1864-5127 PDF
- Michael P. Kerney, RAD Cameron & Jürgen H. Jungbluth: The land snails of Northern and Central Europe. 384 pp., Paul Parey, Hamburg & Berlin 1983, ISBN 3-490-17918-8
Web links
- Fauna Europaea
- Molluscs of Central Europe (still managed as a subfamily here)
- weichtiere.at