Sentence Examples with the word Rhizocephala

This section comprises Darwin's Apoda, the footless, Lilljeborg's Suctoria, called by Fritz Muller the Rhizocephala or rootlet-headed, and the group to which Lacaze-Duthiers gave the alternative names Ascothoracida, sac-bodied or Rhizothoracida, rootlet-bodied.

In the parasitic Rhizocephala and in a few Copepoda (Monstrillidae) the alimentary canal is absent or vestigial throughout life.