EN
Hekarella talawakelae, a new genus and species of rhigonematid from the Carnoyidae is described from the gut of a diplopod from Sri Lanka. The new genus is characterised by the presence of four, well developed, sublateral longitudinal rows of spines in the cervical region of the female, the presence of six cuticularised pieces around the oral opening, the monogonant female genital system, no cephalic cap in the male, anisomorphic and anisometric spicules, boat-shaped gubernaculum with a dorsal hole and 15 copulatory papillae with three pairs either sublateral, subdorsal. Hekarella gen. nov. has some morphological affinities with Martadamsonius, an African carnoyid and also with the Indian genus Raonema, but is easily differentiated by the presence of only one genital tract and by the form of the markedly anisomorphic and anisometric spicules.