Viviparus

Top mud snail ( Viviparus contectus ), housing

The genus Viviparus is a freshwater snail from the family of river snails ( order Architaenioglossa ). She's already proven since the Jurassic.

Features

The housing measure up to 5 cm in height. They are smooth and the whorls are rounded. There are shallow to before hochkonische housing. The intraspecific variability can be significant. The species of the genus are

System

For Europe, the Fauna Europaea indicates five species of the genus Viviparus that some be divided into several sub- types.

  • Danube mud snail ( Viviparus acerosus ( Bourgouignat, 1862) ) ( two subspecies )
  • Italian mud snail ( Viviparus ater ( de Cristofori & Jan, 1832) ) ( three subspecies )
  • Top mud snail ( Viviparus contectus ( Millet, 1813) )
  • Viviparus mamillatus ( Küster, 1852)
  • Blunt mud snail ( Viviparus viviparus (Linnaeus, 1758 )) ( two subspecies )

To offering a suite of exclusively fossil species; e.g.:

  • Viviparus diluvianus ( Kunth, 1865) ( Middle Pleistocene )
  • Viviparus glacialis ( S. Wood, 1872) (Pleistocene )
  • Viviparus teschi Meijer, 1990 ( Pleistocene )
  • Viviparus gibbus ( Sandberger, 1880) ( Quaternary )
  • Viviparus symeonidisi Schütt, 1986
  • Viviparus suessoniensis ( Deshayes, 1826)
  • Viviparus suevicus ( Wenz, 1919)
  • Viviparus sublentus d' Orbigny, 1850
  • Viviparus sadleri Partsch, 1856
  • Viviparus crytomaphora Brusina, 1874
  • Viviparus kurdensis Lörenthey, 1894

Inter alia, Often the genus Viviparus is still divided into several subgenera.

Hunting and

In Central Europe V. viviparus and V. contectus are most common. Often they are referred to in general terms as " river snails ." Both types are offered ( usually without clear distinction! ) In the aquarium trade for aquariums and garden ponds, since they rarely eat up not living higher plants and are also recommended for algae control. For the latter, however, they are less suitable.

Caenogastropoda
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