Sentence Examples

  • Smaller appendages (such as the stylets of male cockroaches) may be carried on the ninth segment.
  • The appendages of the abdomen are called cerci, stylets and gonapophyses.
  • The stylets, when present, are placed on the ninth segment, and in some Thysanura exist also on the eighth segment; their development takes place later in life than that of the cerci.
  • Whether cerci, stylets and gonapophyses are developed from these rudiments has been much debated.
  • It appears that it is possible to accept cerci and stylets as modifications of the temporary pseudopods, but it is more difficult to believe that this is the case with the gonapophyses, for they apparently commence their development considerably later than cerci and stylets and only after the apparently complete disappearance of the embryonic pseudopods.

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