| two new species of nippostrongylinae (nematoda: trichostrongylina: heligmonellidae) from the grey leaf-eared mouse graomys griseoflavus (sigmodontinae) in argentina. | two new species of nippostrongylinae, hassalstrongylus puntanus n. sp., and stilestrongylus franciscanus n. sp. are described from the intestine of the grey leaf-eared mouse graomys griseoflavus (waterhouse, 1837) (sigmodontinae) from the province of san luis, argentina. hassalstrongylus puntanus n. sp. is distinguished from the most closely related species h. dollfusi (díaz-ungría, 1963), a parasite of mus musculus from venezuela by longer rays 2, shorter rays 4, proximal half of the dorsal ray ... | 2003 | 12669346 |