Rivers and streams

Common species of molluscs frequently associated with lowland rivers in Britain.

lowland river

If the water is "hard", the gastropods most frequently found in this habitat are likely to include some of the following:–

  • Ancylus fluviatilis
  • Anisus vortex
  • Bathyomphalus contortus
  • Bithynia leachii
  • Hippeutis complanatus
  • Lymnaea fusca
  • Lymnaea stagnalis
  • Physa fontinalis
  • Physella acuta
  • Planorbarius corneus
  • Planorbis carinatus
  • Planorbis planorbis
  • Potamopyrgus antipodarum
  • Radix auricularia
  • Radix balthica
  • Theodoxus fluviatilis
  • Valvata cristata
  • Valvata piscinalis
  • Viviparus viviparus.

The bivalves occurring in lowland river habitats are likely to include some of the following:–

  • Anodonta anatina
  • Dreissena polymorpha
  • Pisidium amnicum
  • Pisidium casertanum
  • Pisidium henslowanum
  • Pisidium moitessierianum
  • Pisidium nitidum
  • Pisidium subtruncatum
  • Pisidium supinum
  • Sphaerium corneum
  • Sphaerium rivicola
  • Unio pictorum
  • Unio tumidus

 

In "soft" water the fauna will be significantly reduced from the above lists.