Stilestrongylus n. sp. (1)

Site of infection. small intestine

Collection number. MLP-He7334

Host species. Thaptomys nigrita . CG45

Localities. CAMB, RVSU and PPU

Comments. The genus Stilestrongylus was defined by having a markedly asymmetrical caudal bursa, a hypertrophied genital cone and a synlophe with more than 24 cuticular ridges, small and subequal in size (Notarnicola et al. 2010). Among the 26 species of Stilestrongylus described to date, 25 have been described from Sigmodontinae rodents and 1from a spiny rat ( Echimyidae) (Souza et al. 2009; Simões et al. 2014).

Some of the specimens found in T. nigrita in the present study were identified as a new species, differing from those previously described in this genus because of a particular combination of characters, including strong dissymmetry of the bursa, hypertrophy of the common trunk of right rays 2-6, length of dorsal ray and length of the spicules (unpublished data).