(from the article `protozoan`) ...substrate; 3 subclasses, Heterotrichia, Choreotrichia (including the loricate tintinnid ciliates and the oligotrichs), and Stichotrichia.Subphylum ... Found on http://www.britannica.com/eb/a-z/r/42
Rhab·doph'o·ra noun plural [ New Latin , from Greek 'ra`bdos a rod + ......... to bear.] (Zoology) An extinct division of Hydrozoa which includes the graptolities. Found on http://www.encyclo.co.uk/webster/R/74