Dadaytrema oxycephala (Diesing, 1836)

Amphistoma oxycephalum Diesing, 1836

Dadayia oxycephala Travassos, Artigas & Pereira, 1928

Material deposited: MACN-Pa 595 (new voucher material), NHM (type material).

Hosts: Salminus brasiliensis ( Salmo aurata Larrañaga), Salmo pacu (non valid name), Silurus megacephalus (non valid name) and Myleus rhomboidalis (Cuvier) ( Salmo pacupeba Kner) (type host not assigned, Brazil), Piaractus mesopotamicus (Holmberg) ( Characiformes: Serrasalminae), Pterodoras granulosus .

Localities: Paraná River, Cuyaba, Araguay River, Brazil (type locality); Paraná and Paraguay rivers confluence and Middle Paraná River near Corrientes City, Corrientes Province; Colastiné River** (tributary of Paraná River), Santa Fe Province; Paraná-Guazú River**, Entre Ríos Province.

Site of infection: Middle and posterior part of intestine.

References: Hamann (1982a, b), Arredondo (2013).

Remarks: New locality records.