Discus (gastropod)

Spotted bowl snail, Discus rotundatus (OF Müller 1774)

Discus is a worm genus of the family of limpets ( Patulidae ) that is made to the order of snails ( Pulmonata ).

Features

With a case width of up to 7 mm, the genus contains the largest native species of this family. The bowl screw having a flat, disc-shaped casing, with a more or less pronounced keel on the outside.

Occurrence and life

The Discus species live among fallen leaves, wood and stone. The genus occurs Holarctic. The focus of dissemination is the most species in North America.

System

The frequently occurring in Central Europe

  • Spotted bowl snail, Discus rotundatus (OF Müller, 1774 ),

Is counted in the subgenus Gonyodiscus. the

  • Brown bowl snail, Discus ruderatus (A. Ferussac 1821),

Belongs to Nominatuntergattung Discus.

Another way, the

  • Keeled bowl snail, Discus perspectivus ( Megerle of Mühlfeld 1816),

From the subgenus Gonyodiscus lives in the mountains of south-eastern Europe and is only sporadically found in Germany.

Heterobranchia Stylommatophora Punctoidea Leopold Fitzinger
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