Family Cephalobidae

                                 Rev 03/23/2007

Classification:

      Secernentea
       Rhabditida
        Cephalobina 
         Cephaloboidea
          Cephalobidae Filpijev, 1934

Morphology and Anatomy:

• Stoma distinctly jointed; cheilorhabdion wide, rest of stoma narrower.  
• Esophagus with cylindrical procorpus, isthmus barely seen, basal bulb with a valve. 
• Female gonad prodelphic, reflexed down body, usually with an additional double flexure towards the end of the ovary.
• Vulva far from anus.

Key to subfamilies:
       1. Only cheilorhabdions wider than other parts of stoma                                         Cephalobinae
       2. Cephalic probolae shorter than labial probolae                                                    Acrobelinae
       3. Cephalic probolae large, paddle-shaped, longer than labial probolae.                   Kirjanoviinae
       4. Cheilo- and protostom wider and  the wall more cuticularized than other parts.     Panagrocephalinae
                                     

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