Sentence Examples


  • Where locomotive appendages (the parapodia of the Polychaeta) exist, they are never jointed, as always in the Arthropoda; nor are they modified anteriorly to form jaws, as in that group.
  • They are disposed in two groups on either side, corresponding in the Polychaeta to the parapodia; the two bundles are commonly reduced among the earthworms to two pairs of setae or even to a single seta.
  • Setae always present and often very large, much varied in form and very numerous, borne by the dorsal and ventral parapodia (when present).
  • It is held, however, that these are a pair of parapodia which have shifted forwards.
  • The presence of parapodia distinguish this from other groups of Chaetopoda.

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