Euparadistomum sp. (Trematoda: Dicrocoeliidae) in Captive Common Marmosets (Callithrix jacchus) (Primates: Callitrichidae): a Case Report

Dicrocoeliid trematodes were detected in gallbladders and major bile ducts of 2 common marmosets. Their characteristics, including the broadly oval body shape with testes at the level of the anterior rim, ovary dorsal to the large acetabulum, and extracecal, multifollicular vitelline glands interrupted into 2 groups, are typical for a trematode belonging to the genus Euparadistomum. The morphology of the isolated trematodes is closest to the description of Euparadistomum thapari.