Pisidium casertanum
From Wikipedia, the free encyclopedia
| Pisidium casertanum | |
|---|---|
| Conservation status | |
|
NE[1]
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Subclass: | Heterodonta |
| Order: | Veneroida |
| Suborder: | Sphaeriacea |
| Family: | Sphaeriidae |
| Genus: | Pisidium |
| Subgenus: | Euglesa |
| Species: | P. casertanum |
| Binomial name | |
| Pisidium casertanum (Poli, 1791) |
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| Synonyms | |
|
Cardium casertanum Poli, 1791 |
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Pisidium casertanum, the pea cockle or pea clam, is a minute freshwater bivalve mollusc of the family Sphaeriidae.
Contents |
[edit] Description
The shell is of similar shape to Sphaerium novaezelandiae but is smaller as an adult, more inflated, with a deeper hinge-plate, stronger teeth, and the ligament is not visible externally.
Length is up to 4.5 mm, height 3.7 mm, and thickness 2.3 mm.
[edit] Distribution
It has a cosmopolitan distribution.
- British Isles - common[2]
- Czech Republic - in Bohemia, in Moravia,[3] least concern (LC)[4]
- Germany - distributed in whole Germany. High endangered (Stark gefährdet) in Hesse, critically endangered (vom Aussterben bedroht) in Saxony. Pisidium casertanum ponderosum endangered (gefährdet) in Brandenburg.[5]
- Latvia
- Netherlands[6]
- New Zealand - common[7]
- Poland
- Slovakia
[edit] References
- ^ 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 1 April 2007.
- ^ Janus, Horst, 1965. ‘’The young specialist looks at land and freshwater molluscs’’, Burke, London
- ^ (Czech) Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". Malacologica Bohemoslovaca, Suppl. 1: 1-37. PDF.
- ^ Juřičková L., Horsák M. & Beran L., 2001: Check-list of the molluscs (Mollusca) of the Czech Republic. Acta Soc. Zool. Bohem., 65: 25-40.
- ^ Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2
- ^ http://www.anemoon.org/anm/voorlopige-kaarten/kaarten-per-soort/zoetwatermollusken/wetenschappelijk/pisidium-casertanum/?searchterm=Pisidium%20casertanum
- ^ Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
