Subspecies and Distribution. C. a. alpinus Pallas, 1811 — C Russia and W China southward through India to Bhutan and Bangladesh. C. a. hesperius Afanas'ev & Zolotarev, 1935 — E Russia, China, and SE Asia. C. a. sumatrensis Hardwicke, 1821 — Sumatra and Java. in Canidae - Don E. Wilson (Lynx Edicions, 2009)