Dwarf snails
| Dwarf snails | ||||||||||||
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Schmidt's dwarf snail ( Sadleriana schmidtii ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Sadleriana | ||||||||||||
| Clessin , 1890 |
The dwarf snails ( Sadleriana ) are a genus of small freshwater snails from the family of the water snails (Hydrobiidae).
distribution
The species of the genus live in springs and streams or small rivers with clear, clean water, less often in caves or in the groundwater . The distribution ranges from Northern Italy through Slovenia and Croatia to Bosnia-Herzegovina . One species occurs very locally in Germany (Munich), another locally in Bulgaria .
species
Seven species with two subspecies are recognized. Due to the difficult differentiation between the individual species, which is mainly based on the genital organs or by sequencing the DNA , new, previously undescribed species may still be expected.
- Bavarian dwarf snail ( Sadleriana bavarica Boeters, 1989)
- Sadleriana bulgarica (AJ Wagner, 1928)
- Sadleriana cavernosa Radoman, 1978
- River pygmy snail ( Sadleriana fluminensis (Küster, 1853))
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Sadleriana sadleriana (Frauenfeld, 1863)
- Sadleriana sadleriana sadleriana (Frauenfeld, 1863)
- Sadleriana sadleriana robici (Clessin, 1890)
- Schmidt's dwarf snail ( Sadleriana schmidtii (Menke, 1849))
- Sadleriana supercarinata (Schütt, 1969)
Synonyms:
- Sadleriana pannonica (Frauenfeld, 1865) is a synonym of Bythinella pannonica (Frauenfeld, 1865) ( Pannonian spring snail ).
literature
- HD Boeters: in Fauna Europaea . 1989 " Sadleriana " .
- S. Clessin: Moll.-Fauna Oesterr.-Ung. u. Switzerland . 1890, p. 664.
- GR von Frauenfeld: Provisional listing of the species of the genera Hydrobia and Amnicola in the Imperial and Cuming's collection. Prohibition of Zool.-Bot. Ver. Vienna 1863, Vol. 13, pp. 1017-1032
- IUCN Red List of Threatened Species . Version 2010.4. <www.iucnredlist.org>.
- JH Jungbluth & D. von Knorre: Red list of internal mollusks (snails (Gastropoda) and mussels (Bivalvia)) in Germany. 6. Revised and expanded version 2008. Communications of the German Malacoological Society, 81: 1–28, Frankfurt / M.
- HC Küster: The genera Paludina, Hydrocaena and Valvata . In illustrations according to nature with descriptions. - Systematic Conchylia Cabinet by Martini and Chemnitz 1 (21). Nuremberg 1853.
- P. Radoman: New representatives of the Hydrobioidea group from the Balkan Peninsula. Archiv für Molluskenkunde 109 (1/3) 1978, pp. 27-44
Web links
Commons : Sadleriana - collection of images, videos and audio files
