RESUMEN
The life cycle of a new species of Clinostomidae, Clinostomum golvani, described in Guadeloupe (French West Indies). The first intermediate host is the snail vector of Schistosoma mansoni in this island, Biomphalaria glabrata, which can be sterilized by this parasite. Poecilia reticulata (guppy) serves as the second intermediate host. Adult worms were obtained under experimental conditions from Butorides virescens (the definitive host in nature), Nycticorax nycticorax and Ardea purpurea. The adult worm closely resembles Clinostomum complanatum but the larval stages (rediae and cercaria) show several differences. The chaetotaxic description of a cercaria of Clinostomidae is given for the first time.
Asunto(s)
Biomphalaria/parasitología , Vectores de Enfermedades/parasitología , Trematodos/clasificación , Animales , Larva/anatomía & histología , Larva/crecimiento & desarrollo , Trematodos/anatomía & histología , Trematodos/crecimiento & desarrollo , Indias OccidentalesAsunto(s)
Schistosoma mansoni/anatomía & histología , Esquistosomiasis/parasitología , Adaptación Biológica , Animales , Biomphalaria/parasitología , Humanos , Ratones/parasitología , Schistosoma mansoni/crecimiento & desarrollo , Schistosoma mansoni/aislamiento & purificación , Células Receptoras Sensoriales/anatomía & histología , Especificidad de la Especie , Indias OccidentalesRESUMEN
The "cercarian chaetotaxic index" from the human strain of Schistosoma mansoni from West Africa is conspicuously modified during the third transmission Biomphalaria pfeifferi-white mouse only. This might be the explanation why Planorbs collected in Guadeloupe discharge slightly different cercariae whether they come from stations where the infestation is predominantly from human origin or from stations where the infestation is predominantly from murine origin. On the contrary, the "Grand Etang" station is significatively different from all the others and seems to be exclusively murine transmitted.