962 MK. R. I, pococK ox TUE [Juiie 14, 



tliat the plantnr surface, or sole, of each is applied flat to the 

 gi'ound, on account of the much greatei- size of the external as 

 compared with the internal lamina of the nail. 



Genus Dorcelaphus Gloger, 



DoRCELAPHUS (op Cariacus) americanus Erxl. 

 (The Virginian Deer.) (Text-fig. 140, C, p. 965.) 



I have had no dead example of this species for examination, 

 but in the collection of the Royal College of Surgeons there are 

 mounted s])Coimens of the fore and hind feet showing the pedal 

 glands. The glands on the hind foot resemble in a general 

 ■way both in position and development those of the Roebuck 

 [Cajireolus), except that the orifice is relatively larger and less 

 constricted. As in the other Telemetacarpal Deer that I have 

 seen, the interungual integument is eovereil with longish hairs, 

 continuous in fi-ont and behind with those of the anterior and. 

 posterior sides of the pastern respectively. 



The front feet are similarly constructed, and have a large 

 pocket-like gland resembling that of the hind feet but smaller. 

 This is the only species of Deer known to me which has a large 

 pedal gland on the fore foot. 



The presence of preorbital, tarsal, and metatarsal glands in this 

 and allied species has been recorded by other writers, and they 

 are .all apparent upon a living specimen in the Gardens, from 

 Venezuela, which I identify as D. americanus savannarum. 



Genus Mazama Raf. 



Mazama nemorivagus F. Cuv. (The Wood-Brocket.) 

 (Text-fig. 139.) 



I have examined one adult female of this species. 



The preorbital gland was a small shallow infolding, linear when 

 closed and subelliptioal when spread, resembling that of an 

 eighteen months old Cervus sika. 



The hock- or tarsal gland was mai^ked externally by a small 

 tuft of whitish or ashy-grey hairs arranged in a whorl and with 

 their bases encrusted with dark brown seci^etion, the underlying 

 skin bi'ing thick in section, with the roots of the hairs penetrating 

 deeply into it. There was no metatai-sal gland. 



The pedal gland was well developed upon the hind foot. The 

 front of the pastern was marked by a shallow triangular de- 

 pression, at the summit of which was the orifice of a cylindrical 

 sac resembling that of the Reindeer (Jianyifer), the deep end of 

 the pocket reaching nearly to the false hoofs. The walls of the 

 pocki't were sparsely lined with hairs covered with secretion 

 which stained black the longer hairs of the depression below the 

 orifice of the gland. The secreting layer of cells enveloped the 

 pocket and exteiided along the skin t'oimiug the posterior wall of 



