After Nowak, 1991
<==o Proechimys sensu stricto [28] |-- P. amphichoricus Moojen, 1948 |-- P. bolivianus Thomas, 1901 |-- P. brevicauda (Günther, 1877) |-- P. canicollis (J.A. Allen, 1899) |-- P. cayennensis (Desmarest, 1817) (Guiana Spiny Rat) |-- P. chrysaeolus (Thomas, 1898) |-- P. cuvieri Petter, 1978 (Cuvier's Spiny Rat) |-- P. decumanus (Thomas, 1899) |-- P. goeldii Thomas, 1905 (Goeldi's Spiny Rat) |-- P. gorgonae Bangs, 1905 (Gorgona Island Spiny Rat) |-- P. guairae Thomas, 1901 |-- P. gularis Thomas, 1911 |-- P. hendeei Thomas, 1926 |-- P. hoplomyoides (Tate, 1939) |-- P. longicaudatus (Rengger, 1830) (Longtailed Spiny Rat) |-- P. magdalenae (Hershkovitz, 1948) |-- P. mincae (J.A. Allen, 1899) |-- P. myosuros (Lichtenstein, 1820) |-- P. oconnelli J.A. Allen, 1913 (O'Connell's Spiny Rat) |-- P. oris Thomas, 1904 |-- P. poliopus Osgood, 1914 |-- P. quadruplicatus Hershkovitz, 1948 |-- P. semispinosus (Tomes, 1860) (Tomes' Spiny Rat) |-- P. simonsi Thomas, 1900 |-- P. steerei Goldman, 1911 |-- P. trinitatis (J.A. Allen & Chapman, 1893) |-- P. urichi (J.A. Allen, 1899) `-- P. warreni Thomas, 1905 (Warren's Spiny Rat)
Reference(s):
- Nowak, R. M., 1991: Walker's Mammals of the World; Part 1.
–The Johns Hopkins University Press, Baltimore and London, 1991, xlviii-642-lxiii - Nowak, R. M., 1991: Walker's mammals of the World; Part 2.
–The Johns Hopkins University Press, Baltimore and London, 1991, xii-643-1629