Planorbis Planorbis
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''Planorbis planorbis'' is a species of air-breathing
freshwater snail Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs ...
, an aquatic
gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk in the family Planorbidae, the ram's horn snails.Neubauer, Thomas A. (2014). ''Planorbis'' (''Planorbis'') ''planorbis'' (Linnaeus, 1758). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=822236 on 2014-11-23


Distribution

* Cosmopolitan - introduced and being considered invasive to many places and considered as a pest * Czech Republic Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. nnotated list of mollusc species recorded outdoors in the Czech and Slovak Republics. '' Malacologica Bohemoslovaca'', Suppl. 1: 1-37
PDF
- least concern (LC) * Slovakia * Germany - not listed in red list * the NetherlandsPlanorbis planorbis — Anemoon
/ref> * Poland * Great Britain * Ireland * Hungary


Description

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.


Ecology

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


External links


''Planorbis planorbis''
at Animalbase Planorbidae Gastropods described in 1758 Taxa named by Carl Linnaeus {{Planorbidae-stub