| [2 new species of stilestrongylus (nematoda: heligmonellidae) parasites of peromyscus (rodentia: cricetidae) from mexico]. | stilestrongylus peromysci n. sp. collected from peromyscus difficilis (hidalgo state, méxico), differs from other species in the genus in number of the spines (30) in the synlophe (both sexes) and because the eighth ray arises from the root of the ninth ray; s. hidalguensis n. sp. parasitised peromyscus sp. and differs from all other congeneric species in the presence of 24 spines in the male synlophe and in the arrangement of the bursal rays (2-2-1 in the right lobe and 2-3 in the left lobe). a ... | 1999 | 11021311 |