| [parasitic helminths from sigmodon hispidus (rodentia: cricetidae) from seasonal and evergreen habitats in costa rica]. | the helminthological fauna of the cotton rat, sigmodon hispidus in a tropical environment varies according to habitat and feeding behavior. six species of nematodes (longistriata adunca, trichostrongylus sigmodontis, strongyloides sigmodontis, litomosoides carinii, monodontus sp. and protospirura sp.) and two species of cestodes (hymenolepis diminuta and raillietina sp.) were found in rats from extensive dry lands in guanacaste where hot temperatures and heterogeneous diet are the rule. only two ... | 2000 | 11021315 |