1 62 
Mammals of Eastern Asia 
China from Fukien to Annam is C. a. lepturus. South of China 
the race C. a. adustus extends from Tonkin, Annam, Laos, and 
Cochin-China westward to upper Burma and perhaps Assam. 
The form occurring in peninsular Siam and Tenasserim is 
named C. a. infascus, and the one in the lower Malay Peninsula 
and Sumatra C. a. sumatrensis. These races, in some cases at 
least, grade into one another along their areas of contact and 
the distinctions between them are slight. Thus, Pocock distin- 
guished the Tenasserim race from the Burmese chiefly by its 
smaller size and thinner pelage. 
The Raccoon Dogs, Nyctereutes procyonoides, are small, 
short-muzzled canids, with the full complement of teeth of the 
Wolves and Foxes (there may sometimes be an extra upper 
molar), and a large blackish brown area beneath and partly 
surrounding each eye that makes them resemble Raccoons. They 
Fig. 35. Raccoon Dog, Nyctereuies procyonoides. 
