Abstract

Three new species of Nothotylenchus viz., N. cylindricus n. sp., N. allii n. sp., and N. hexaglyphus n. sp. are described from Indian soils. N. cylindricus is distinctive in possessing an elongate cylindroid basal oesophageal bulb, thin-walled, oval spermatheca with spheroidal sperms and longer than head-width spear, while N. allii is characterized by its pyriform basal oesophageal bulb, four incisures in the lateral field and bursa enveloping only 2/5 of the tail. Nothotylenchus hexaglyphus can be differentiated by its poorly knobbed spear, set off pyriform basal bulb, posterior vulva, short postvulval uterine sac and lateral field with six incisures. A key to the species of the genus Nothotylenchus is presented.

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