Ramnogaster
Ramnogaster is a small genus of sprats found only in South America. Two species are placed in this genus: Ramnogaster arcuata (Jenyns, 1842) (Jenyns's sprat) Ramnogaster melanostoma (C. H. Eigenmann, 1907) (Uruguay river sprat) References Clupeidae Fish of South America Freshwater fish genera