Atlantic spiny rat
[3] The species of spiny rats in the genus Trinomys are apparently all Brazilian.Not much is known for certain about their ranges however, which still are being investigated, with frequent extensions to the recorded distributions of several species in various ecological classes of forest and dry land.[4] Most species of Trinomys are terrestrial and ambulatory, though Trinomys yonenagae is unusual that it is semi-fossorial, living in colonial burrows, and exhibits incipient specializations for saltatorial locomotion.[5] Trinomys is the sister genus to the fossorial genera Clyomys and Euryzygomatomys.Trinomys (Atlantic spiny rats) Clyomys Euryzygomatomys (guiaras) Carterodon (Owl's spiny rat) Plagiodontia Geocapromys Capromys (Desmarest's hutia) Mesocapromys Mysateles