Inagreius gloriosus gen. n., sp. n. and descriptions of three new species of Xiphinema Cobb, 1913 along with report on X. radicicola T. Goodey, 1936 and X. elongatum Sch. Stek. & Teun., 1938 (Nematoda: Longidoroidea) from India

Inagreius gen. n. is proposed and diagnosed under the subfamily Paralongidorinae for forms having small cup like amphidial pouch, with the basal lining bilobed, amphidial aperture slit like; lip region set off and is followed by a second constriction. Siddiqia beryllus is designated as the type species. I. gloriosus gen. n., sp. n. collected from soil around pomegranate roots at Nagarjun Konda, Andhra Pradesh, is distinctive by the long body, dorsally convex conoid tail which is slightly longer than anal-body-diameter. Xiphinema nagarjunensis sp. n. also collected from Nagarjun Konda, is characterized by small body size set off head and protoplasmic core extending more deeply in tail region. X. mammillocaudatum sp. n. collected from Assam has a short body, opisthodelphic gonad and hemispherical tail with a short mamniillale peg. X. neodimorphicaudatum sp. n. isolated from soil around pear roots is unique' in having more number of males than females, the former showing distinct sexual dimorphism in tail character. Variations in X. radicicola and X. elongatum are reported.