Volume s1-24, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



  • 1.  In a semi-solid medium sent out a long, clear pseudopodium containing the 4 anterior flagella and the undulating membrane.
  • 2.  This pseudopodium was in constant motion, though the trichomonas did not change its position.
  • 3.  The pseudopodium was frequently withdrawn into the body.
  • 4.  After 48 hours in the semi-solid medium a much longer pseudopodium was often formed. This could not always be withdrawn and was considered a sign of degeneration. The addition of Ringer's solution sometimes brought this form back to normal.
  • 5.  The axostyle with its row of granules on either side was clearly visible in these forms.
  • 6.  The density of the medium and the contractile tension of the protoplasm were important factors in the formation of these long pseudopodia.


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  • Received : 03 Nov 1943

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