Sentence Examples


  • Single cyst germinating (X200).
  • The most remarkable feature of this cystic development is the formation in many genera of several internal buds within a common cyst, each of which forms an independent inverted scolex (Coenurus, Polycercus); or these internal vesicles may bud off a large number of scolices on their external surface (Staphylocystis).
  • On this view, therefore, at least two asexual generations (embryo and scolex) alternate with a sexual one (proglottides); and in the case of Staphylocystis the cyst contains two asexually produced generations, so that in such forms three stages (embryo, primary scolex-buds, secondary scolices) intervene between the proglottis of a Cestode and that of its offspring.
  • (From Lankester's Treatise on Zoology, part iv.) purposes inside the cyst, which is itself an organ comparable to an amnion.
  • (After Beard.) E, Portion of the arm of Pentacrinus, showing a cyst containing Myzostoma.