Description of Helicotylenchus zeidani sp. nov., a new species of nematode from Guneid sugarcane, Sudan.

Abstract A study was done on the taxonomy and morphology of plant parasitic nematodes (Tylenchida) found in a Guneid sugarcane factory field of Saccharum officinarum (sugarcane), in Gezira state, Sudan. The samples were collected from around the root zone of sugarcane stools at a depth of 10 to 15 cm. One new species belonging to Hoplolaimidae was identified and studied. Helicotylenchus zeidani sp. nov. is characterized by a smooth head and a conical tail with a projection. It is 0.72 mm (0.62 to 0.81 mm) long, a  = 32.4 (25.6 to 36.6), c  = 36.9 (29.2 to 53.1) with a medium sized body and shorter stylet.