Sentence Examples

  • Clitellum not present as a definite organ, as in Oligochaeta.
  • Clitellum 37 always present, extendin over two (many limicolous forms) to forty-five seg ments (Alma).
  • The clitellum consists of a thickening of the epidermis, and is of two forms among the Oligochaeta.
  • It is therefore obviously much thicker than the clitellum in the limicolous forms. The position of the clitellum, which is universal in occurrence, varies much as does the number of component segments.
  • As a rule - to which, however, there are exceptions - the clitellum consists of two cr three segments only in the small aquatic Oligochaeta, while in the terrestrial forms it is as a general rule, to which again there are exceptions, a more extensive, sometimes much more extensive, region.

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