1910.] 



CUTANEOUS SCENT-GLANDS OF RUMINANTS. 



895 



the only difference I can find between the two being the thickness, 

 smoothness, and curvature of the interungual integument. 



Text-fig. 105. 



A. Transverse section of preorbital gland of Antilope cervieapra $ : 



a, skin extending towards the eye ; h, towards the nose. 



B. Vertical or longitudinal section of the same gland : a, upper, 6, lower 



extremity. 



C. Median vertical section of front foot of Antilope cervieapra. 



D. The same of hind foot of LitJwcranius walleri. (The fold in the integu- 

 ment of the wall of the gland probably absent in fresh specimen.) 



'' In a living male specimen of this species the secretion of the 

 inguinal glands smells exactly like flour-paste and might be 

 described as starchy. The secretion of the preorbital gland is 

 peculiar and indescribable. I cannot agree, however ,'.with Bennett 

 that the odour is urinous*. 



* It is not, I believe, generally known to naturalists and sportsmen, though the 

 fact is perhaps familiar to some who have paid attention to animals in captivitj', 

 that the adult male of this species undergoes a marked seasonal change of colour. 

 During the summer months, that is to say, from about May to August, the colour, 

 except of the face, is like that of females and young males, namely tawuj-. In the 

 latter part of August or thereabouts, the coat begins to darken and gradually but 

 rapidly assumes the dark hue whence the trivial name of the species '■ Blackbuck 

 has been derived. At or about the beginning of j\lay the opposite change rapidly 



