Sentence Examples

  • It is, however, always possible to recognize a head, which consists at least of the peristomial segment with a forward projection of the same, the prostomium.
  • Per.c, Peristomial cirri.
  • As in the Oligochaeta the peristomial segment is often without setae; but this character is not by any means so constant as in the Oligochaeta.
  • The setae, which are always absent from the peristomial segment, are also sometimes absent from a greater number of the FIG.