200 



MR. R. I. POCOCK OW THE EXTERNAL 



The metatarsal and tarsal glands are variable. The former 

 attains its 'maximum in development in 0. hemionus, where, 

 according to Caton, the bare patch of skin overlapped by long 

 hairs may be five or six inches long. In ITorth American ex- 

 amples of 0. virginianus it varies from less than one inch to an 

 inch and a half in length, whereas in some of the southern forms 

 (such as 0. V. toltecus, acapulcensis, etc.) it is absent. The tarsal 

 gland varies in size and colour according to the species ; but I do 

 not know whether it is absent or not. According to Caton, its 

 hairs expand under excitement, like the hairs of the tail and 

 rump, in the ■STorth American species. 



Genus Mazama Raf. (p. 962). 



The two species of this genus previously described were 

 M. nemorivagus (p. 962) and M. hricenii (p. 964). 



Mazama tema Raf. 



A single nmle example from Guatemala, which died on April 

 26th, 1914. 



The rhinarium is naked above almost as far back as the 



Text-figure 13. 



A. Longitudinal section of tlie fore foot oi Mazama tema. 



B. Tlie same of the liind foot. 



C. The same of the hind foot of Piidn jpiidzi,. 



posterior angles of the nosti"ils and the infranarial portion is very 

 wide, showing latei'ally as far back as the middle of the nostrils, 

 as in il/. nemorivagus. (Text-fig. 14, 0.) 



