Abstract
ABSTRACTA new species of polystomatid monogenean,Eupolystoma anterorchissp. n. is described from the urinary bladder and kidneys ofBufo pardalisfrom the Cape Peninsula, Republic of South Africa. It is distinguished from otherEupolystomaspecies, and from all other species except one within the Polystomatidae, by the anterior pre-ovarian extension of a large proportion of the testis follicles. This and other morphological characteristics are incorporated into an amended generic diagnosis.The morphology ofE. alluaudifromBufo regularisin West Africa is also described. The known range of this species is enlarged with new geographical records in the Cameroun and Ethiopia, and a new host record fromNectophrynoides malcolmi.Material from each area shows that the eggs ofEupolystomaspp. complete developmentin uteroand that all developmental stages of the parasite occur side by side within the same host individual. This represents a significant evolutionary departure from the pattern of transmission typical ofPolystomain most of the other anuran hosts.
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