Mesocoelium incognitum Travassos, 1921

Hosts and locality records: Rhinella crucifer (= Bufo crucifer) (locality not reported), Rhinella marina (= Bufo marinus) (locality not reported) and Rhinella schneideri (= Bufo paracnemis) (AS, CH, IL, RC, YP)

Distribution: Brazil and Paraguay

Site of infection: small intestine

Stage: adult

Reference: Lent et al. (1946) and Yamaguti (1958)