Girish Mahajan (Editor)

Pisidium moitessierianum

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Kingdom
  
Animalia

Subclass
  
Heterodonta

Suborder
  
Sphaeriacea

Scientific name
  
Pisidium moitessierianum

Rank
  
Species

Phylum
  
Mollusca

Order
  
Veneroida

Family
  
Sphaeriidae

Higher classification
  
Pisidium

Pisidium moitessierianum httpsuploadwikimediaorgwikipediacommonsthu

Similar
  
Pisidium henslowanum, Pisidium, Pisidium hibernicum, Pisidium subtruncatum, Pisidium nitidum

Pisidium moitessierianum is a species of minute freshwater clam. It is an aquatic bivalve mollusc in the family Sphaeriidae.

Contents

Description

This species is the smallest of the pea clams or Pisidium species, and the smallest of any freshwater bivalve, at 1.5 - 2.5 mm. adult size. The shell is long-oval and oblique wedge-shaped with prominent umbos which are slightly behind the mid point. The umbos are demarcated by a shallow furrow. The surface (periostracum) is silky, with regular concentric striae.

Distribution

The species is native to Europe, but has been introduced to northeastern North America.

  • Czech Republic - in Bohemia, in Moravia, - endangered (EN)
  • Slovakia
  • Germany - endangered (gefährdet)
  • Nordic countries: Denmark, Finland, Norway and Sweden (not in Faroes, Iceland)
  • Great Britain and Ireland

    • References

    Pisidium moitessierianum Wikipedia
    (Text) CC BY-SA


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