Saccocoelioides quintus Thatcher, 1978

Material deposited: MACN-Pa (type material).

Host: Loricariichthys anus (Valenciennes) (= Loricaria anus Valenciennes) (type host) ( Siluriformes: Loricariidae).

Localities: Middle Paraná River, in front of Rosario City, Santa Fe Province (type locality); Paraná River, Corrientes Province.

Site of infection: Intestine.