Creptotrema dissimilis Freitas, 1941

Material deposited: CHIOC (type material), MLP.

Host: Tetragonopterus argenteus Cuvier (type host, Brazil); Astyanax bimaculatus (Linnaeus), Astyanax eigenmanniorum (Cope) ( Characiformes: Characidae).

Locality: Rio Miranda (Salobra), Mato Grosso State, Brazil (type locality); Trin Lagoon (Iberá Inlet), Corrientes Province; Boca Cerrada and Miguelín Stream (Ensenada), Buenos Aires Province.

Site of infection: Intestine.

References: Freitas (1941c), Hamann (1983), Lunaschi (1985a).