Scapteromys Waterhouse 1837 (swamp rat)
Mammalia - Rodentia - Cricetidae
Parent taxon: Akodontini according to G. D'Elía 2003
Sister taxa: Akodon, Bibimys, Blarinomys, Brucepattersonius, Deltamys, Juscelinomys, Kunsia, Lenoxus, Necromys, Oxymycterus, Thalpomys, Thaptomys
Subtaxa: Scapteromys tumidus
Ecology: ground dwelling herbivore