Subspecies and Distribution. C. t. thous Linnaeus, 1766 — N Brazil, the Guianas, and SE Venezuela. C. t. aquilus Bangs, 1898 — N Colombia, N Venezuela. C. t. azarae Wied-Neuwied, 1824 — NE & C Brazil. C. t. entrerianus Burmeister, 1861 — Argentina, Bolivia, S Brazil, Paraguay, and Uruguay. C. t. germanus G. M. Allen, 1923 — Colombia (Bogota region). in Canidae - Don E. Wilson (Lynx Edicions, 2009)