Pisidium sentence example

pisidium
  • In some Lamellibranchs - for instance, the European Oyster and the Pisidium pusillum - the sexes are united in the same individual; but here, as in most hermaphrodite animals, the two sexual elements are not ripe in the same individual at the same moment.
    0
    0
  • An example of the latter is seen in a common little freshwater bivalve, the Pisidium pusillum, which has been studied by Lankester.
    0
    0
  • In the allied genus Cyclas, a byssus gland is formed in the foot and subsequently disappears, but no such gland occurs in Pisidium.
    0
    0
    Advertisement