Nippostrongylinae

Guillermo Panisse, María Del Rosario Robles, María Celina Digiani, Juliana Notarnicola, Carlos Galliari & Graciela Teresa Navone, 2017, Description of the helminth communities of sympatric rodents (Muroidea: Cricetidae) from the Atlantic Forest in northeastern Argentina, Zootaxa 4337 (2), pp. 243-262 : 253-254

Nippostrongylinae sp. (1)

Site of infection. small intestine.

Collection number. MLP-He7335

Host species. Thaptomys nigrita . ROB159

Localities. CAMB, RVSU and PPU

Comments. These specimens show some characters of the synlophe that allow them to be attributed to the Nippostrongylinae , i.e. the number of ridges (more than 13) and the ridges continuous around the body ( Beveridge et al. 2013). At first, the specimens could not be assigned to any known genus in the subfamily mainly because of having a synlophe with a careen made up of two ridges of dissimilar development and a subsymmetrical caudal bursa with short dorsal lobe. The presence of a careen makes it similar to the genus Mazzanema Digiani, Notarnicola & Paulos, 2013 (monotypic) parasitic in Holochilus chacarius Thomas, 1906 (Sigmodontinae) . However, other characters of the bursa and the synlophe are different from those of the sole species Mazzanema fortuita (Freitas, Lent & Almeida, 1937) and the value of these characters has still to be assessed.

This is the first record of Strongylida in T. nigrita together with Stilestrongylus n. sp. (1) (see above).