964 MK. R. I. PococK o.\ TiiK [June 14, 



except that the pocket wiis representetl by a very shallow 

 depression, and the area of the pastern below this was scai-cely 

 depressed. The secreting layer of cells lined the integument in 

 exactly the same way. 



I believe this species to have been correctly determined ; 

 yet, according to Fitzinger, M. nemorivagus has no tarsal gland, 

 and Avas consequently made the type of that author's genus 

 Dori/ceros. 



Mazama bricenii Thos. (Briceni's Brocket.) 

 (Text-fig. 140, A, B.) 



A single adult female example from Venezuela. The preorl)ital 

 gland resembled that of M. nemorivagus. Superficial examina- 

 tion of the hock showed no trace of the taisal gland, l)nt when the 

 haii'S over the appropi-iate spot were rubbed aside they were seen 

 to have darker bases than elsewhere on the leg and the under- 

 lying integument was thickened as in M. nemorivagus although 

 to a much less degree. On a dried skin these glands would 

 probably have been wholly ovei'looked, since they were not marked 

 by any tuft of hairs thicker or coarser than those surrounding 

 the area. 



The feet Avere rather ditierently constructed from those of 

 M. nemorivagus, the hoofs being very much shorter, the inter- 

 digital cleft on the front of the pastern deepei', and the inter- 

 ungual web shallower. On the hind foot the glandular pocket 

 Avas capacious and deep, extending l»ackwai'ds and upwaixls and 

 touching the skin of the postei'ior siile of the pastern just below 

 the false hoofs. It was nearly elliptical in section, the lumen of 

 the sac being larger than the orifice. Just below the orifice the 

 integument formed an arched curve down to the strong heel-tie. 

 The walls of the pouch were thickl}-^ and uniformly covered with 

 long haiis projecting towards the orifice ; and the walls of the 

 interdigital cleft and the heel-tie were also covered uniforndy 

 with hairs. An olive-brown glandular secreting layer enveloped 

 the po(;ket and extended inferioi-ly nearly to the heel-tie. On the 

 front foot the pocket, although small as compared with that of 

 the hind foot, was better marked than in any species of Deer 

 I have examined with the exception of Dorcelaphas americaniis, 

 consi.sting of a very definite hair-lined invagination. Below the 

 orifice the skin of the antei-ior siu-face of the pastern passed towards 

 the hoofs in a direction parallel to that of the posterior side of the 

 pastern, then descended obliquely downwards and backwards to 

 the heel-tie, which for a short distance was hairless, thus difl'ering 

 from the corresponding area in the hind foot, and recalling the 

 similar diflerence between the two feet of the Muntjacs [Cervidus). 



Since jiedal glands essentially similar in structure and position 

 are found in such widely-divergent genera of Telemetacar})al 

 Deer as Itangifi'.r, Capreolus, JJorci'laj)]tHs, ixvuX Mazama, it may be 

 inferred that they are present at least upon the hind feet in the 



