Pill Clams

Pisidium

Summary 2

Pisidium is a genus of very small or minute freshwater clams known as pill clams or pea clams, aquatic bivalve molluscs in the family Sphaeriidae, the pea clams and fingernail clams. In some bivalve classification systems, the family Sphaeriidae is referred to as Pisidiidae, and occasionally Pisidium species are grouped in a subfamily known as Pisidiinae.

Sources and Credits

  1. (c) Biopix, some rights reserved (CC BY-NC), http://www.biopix.com/PhotosMedium/Pisidium%20sp%2000014.JPG
  2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Pisidium

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