Subspecies and Distribution. P. g. griseus Gray, 1837 — Argentine and Chilean Patagonia. P. g. domeykoanus Philippi, 1901 — N & C Chile, possibly S Peru. P. g. gracilis Burmeister, 1861 — W Argentina (Monte Desert). P. g. maullinicus Philippi, 1903 — S Argentine and Chilean temperate forests. Introduced (griseus) in Tierra del Fuego. in Canidae - Don E. Wilson (Lynx Edicions, 2009)