Two new species of the genus Coomansinema Ahmad and Jairajpuri, 1989 (Nematoda: Dorylaimida) with a key to its species

: Two new species of the genus Coomansinema Ahmad and Jairajpuri, 1989 are described and illustrated. C. japonicum n. sp. is characterized by having medium size body (L= 1.40 - 1.45 mm); lip region truncate with completely amalgamated lips; amphideal fovea goblet - shaped; 16 - 20 μm long odontostyle; 23 - 25 μm long odontophore; comparatively anterior position of the second pair of pharyngeal glands; amphidelphic female genital system; longitudinal vulva; males with 48 - 54 μm long spicules; 7 - 8 spaced ventromedian supplements and tail long filiform in female and short conoid in male. C. longicaudatum n. sp. is characterized by having medium size body (L= 1.1 - 1.3 mm); lip region truncate, continuous with completely amalgamated lips; amphideal fovea cup - shaped; 16 - 17 μm long odontostyle; 19 - 20 μm long odontophore; comparatively anterior position of the second pair of pharyngeal glands; amphidelphic female genital system; transverse vulva, intestinal - prerectum junction with a tongue - like structure and 210 - 269 μm long filiform tail. A key to its seven valid species is provided.