TTJLPES. 147 



71. Cyon rutilans. The Malay wild Dog. 



? Canis jayanicus, Desm. Mamm. p. 193 (1820). 



Canis familiaris, var. sumatrensis, Hardwicke. Trans. Linn, Soc xiii 



p. 235, pi. xxiii (1822). 

 Canis rutilans, S. Mull. Verhandelingen, Zoo!. Zoogd. pp. 27 51 



(1839) ; Blyth, Mam. Birds Burma, p. 24. 

 Cuon primaevus, Cantor, J. A. S. B. xv. p. 106, nee Hodgson. 

 Tau-khwe, Burm. ; Anjing-utan, Malay. 



Smaller and slighter in build than C. dukhunensis, limbs much 

 more slender. The length of the upper sectorial is very little 

 more than that of the two upper true molars. No woolly under- 

 fur ; hair of body short and harsh ; brush smaller than in C. duk- 

 hunemsis. 



Colour. Uniform deep ferruginous red above, hair scarcely paler 

 towards the base. Lower parts whitish. Terminal portion of tail 

 black. (The original C. javanicus was said to be black on the back 

 and outside of the limbs.) 



Dimensions. Head and body'32| inches in a young male, tail 12 ; 

 tarsus and hind foot in adults 6 inches. An adult female skull 

 from Moulmein measures 5-9 inches in basal length, 3-5 in zygo- 

 matic breadth, length of upper sectorial 0'75. 



Distribution. Throughout the Malay Peninsula, Sumatra, Java, 

 and it is said Borneo. This is the species found in the Tenasserim 

 provinces ; and there is a specimen from Moulmein in the British 

 Museum. Whether the form that inhabits Northern Burma is 

 identical with this or the last species is not known. 



Habits. Similar to those of C. dukhunensis. 



Genus VULPES, Brisson, 1758. 



Foxes, although frequently classed in the same genus with wolves 

 and jackals, differ sufficiently to be entitled to generic distinction, 

 being of slighter build with a longer tail, sharper muzzle, propor- 

 tionally longer body and shorter limbs. The tail is always con- 

 siderably more than half the length of the head and body, and is 

 covered with long hair. The ears are large, the pupil of the eye 

 vertically elliptical in a strong light, and there are 6 mammae. 



There is no frontal sinus in the skull, and the form of the 

 anterior portion of the brain differs from that of Canis *. The 

 upper surface of the postorbital processes is concave. The nasal 

 bones do not extend so far back on the face as the maxillaries. 



Dentition: i. ^, c. l ~ } . > pm. ^, m. |^|, as in Canis. 



* Huxley, P. Z. S. 1880, p. 246. 



L2 



