Genus Xiphinema

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ORDER DORYLAIMIDA
            Family Longidoridae
                        Genus Xiphinema

 

Genus Xiphinema Cobb, 1913

“Spear greatly attenuated with extensions bearing elongate, basal flanges.  Spear guiding ring deep in the pharynx.   Basal part of esophagus 2-4 times as long as body width.  Vulva transverse with muscular labia.  Ovaries 1 or 2.  Tails hemispheroid to elongate cylindroid.  Males often unknown or rare.  Species are not assigned to subgenera as outlined by Cohn and Sher, 1972.” From Powers and Mullin website http://nematode.unl.edu/    

             

References:

Powers T. and P. Mullin. Plant and Insect Parasitic Nematodes. University of Nebraska Nematology Website. http://nematode.unl.edu/