Nematodes of the order Rhabditida from India. Description of a new and a known species of Diplogastrellus (Diplogastridae)

Abstract

A new and a known species of the genus

Diplogastrellus Paramonov, 1952 are described and illustrated. D. thoubalicus sp. n., collected from farmyard manure, is characterized by a large dorsal tooth, sub-ventral stegostom without denticles and mono-prodelphic reproductive system in females. Males have thin and arcuate spicules, a large loop-shaped gubernaculum with a narrow sleeve and nine pairs of genital papillae of which three pairs are pre-cloacal and six pairs post-cloacal; in addition, a rudimentary bursa is associated with genital papillae v5, v6 and v7. D. heynsi, originally reported from South Africa, is here described with additional information on the stoma, amphids, genital papillae and female reproductive system.