Leaf snails

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Leaf snails
Common hair snail (Trochulus hispidus)

Common hair snail ( Trochulus hispidus )

Systematics
Euthyneura
Superordinate : Lung snails (Eupulmonata)
Order : Land snails (Stylommatophora)
Subordination : Helicina
Superfamily : Helicoidea
Family : Leaf snails
Scientific name
Hygromiidae
Tryon , 1866

The leaf snails (Hygromiidae) are a family (in some authors only subfamily) of the order of the land snails (Stylommatophora). There are around 50 species in Europe .

features

The cases are small to medium-sized, mostly less than 20 mm. Brownish colors predominate in the housing colors. The shell can be thin and hairy (e.g. Hygromiinae), but also relatively thick and smooth (e.g. heather snails ). The species shoot their love arrow or stab it, or it is inserted into the genital opening next to the penis. However, the mating behavior of many species is only poorly known.

Occurrence, way of life and distribution

The species of the family live e.g. Sometimes in moist forest areas, but also in dry, warm, open biotopes. They are distributed from the Azores and Canary Islands in the west across Europe and North Africa to Central Asia.

Systematics

The leaf snails are considered by some authors merely as a subfamily and placed in the family of the snail snail (Helicidae). Bouchet and Rocroi saw the group as a family and added five subfamilies with a total of nine tribes . The Helicellinae are now part of the Geomitridae family. According to the current system (2020), the breakdown of the family is as follows:

are not included in the current subdivision into subfamilies and tribe:

supporting documents

literature

  • 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

Individual evidence

  1. ↑ Dirk Steinke, Christian Albrecht and Markus Pfenninger: Molecular phylogeny and character evolution in the Western Palaearctic Helicidae sl (Gastropoda: Stylommatophora). Molecular Phylogenetics and Evolution, 32: 724-734, San Diego 2004, ISSN  1055-7903
  2. ^ Helicellinae Ihering, 1909
  3. ^ Helicellinae Ihering, 1909

Web links

Commons : Tree slugs (Hygromiidae)  - Collection of images, videos and audio files