Appearance
This species, like all planorbids, has a sinistral shell. The width of the shell is 15 – 20 mm. The keel on the periphery of the shell is near the edge closest to the spire side, which is carried downwards in life.Distribution
* Cosmopolitan - introduced and being considered invasive to many places and considered as a pest⤷ Czech Republic - least concern
⤷ Slovakia
⤷ Germany - not listed in red list
⤷ the Netherlands...hieroglyph snipped...
⤷ Poland
⤷ Great Britain
⤷ Ireland
⤷ Hungary
Habitat
The habitat of this species is shallow standing and slowly running freshwaters on a mud substrate, also ponds and temporarily drying flood waters, up to 1 metre depth. ''Planorbis planorbis'' does not tolerate intensive water movements but is tolerant to eutrophic conditions.References:
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