SCENT-GLAXDS IN" MAMMALS, 



749 



dermal cells everywhere underlies the naked area, which was 

 covered with waxy secretion. 



The Preputial Gland o/Nototragus. 



Up to the present time Moschus is the only Ruminant Artio- 

 dactyle in which a preputial gland has been discovered. I found 

 a gland similarly situated in the Grysbok (JVototragus melanotis), 

 a small African Antelope. 



The sac of the gland was 1 1 inches long and 1 inch wide and 

 narrowed anteriorly towards the orifice, which was situated in 

 the prepuce just above the tip of the glans penis. The sac, 

 extending backwards parallel with the penis, had its lining 

 integument ridged and wrinkled and covered with long hairs, 

 the tips of which were directed towards the orifice. The strong- 

 smelling secretion, tilling the sac, was dark green 'u\ colour and 

 waxy in consistenc}'. 



Text-tigui-e fi^ 



fi-eputial gUml of JSlotoirAgu.i melandiis. 



gl., sflfi of gliiiul filled With hairs; p., penis retvacted ; a., pfepi\tiiil orifice 

 commoil to gland <ind pe)iift. 



Since discovering the gland I have had no opportunity of 

 examining male examples of Ourehia, Rhaphicetos, and other 

 antelopes related to Nototragus. 



The Dorsal Gland of Dendrohyrax-. 



In the Hyracoidea the presence of a dorsal gland, marked 

 externally by a patch of white^ yellowish, or black hairs, has long 

 been known to systematic zoologists. 



In Dendtohp-ax dorsalls the glandvUar area is an elongated 

 strip of naked skin, rather more than twice as long a.s broa.d« 

 widest across the middle, gradually narrowed and pointed in 

 front, more abruptly narrowed and blunter behind. The hairs 

 surrounding it are long, bla.ck at the base and white diisitally. 

 The lateral portions of the naked strip are bluish grey, minutely 



