lillO.] 



CUTANEOUS SCKXT-tlLANUS OF JtUMI.NANTS. 



901 



form the anterioi' web joining tlie two halves of the pastern 

 together in front. Although essentially of the same nature as in 

 Gazelles this gland diftereil in one or two jioints. For instance, 

 the height or length of the cavity :ilong the back of the pastern 

 Avas consi(lei'al}ly greater than the length of the orifice, owing to 

 the cavity being continuerl farther up the pastern than the edge 

 of the anterior upper web. In the second place, the walls of tlie 

 cavity were clothed with long blackish hairs which projected from 

 the orifice, forming only a small tuft over the pi'oximal margin 



Text-fig. 106. 



Bnbalis caaiiia. 



A. Vortical median section of preoibital gland. 



B. The same of front foot. 



C. The same of hind foot. 



of the hoof. Lastly, the intei'ungual web was quite naked back to 

 the heels, and instead of meeting the skin of the back of the 

 pastern at right angles met it at an obtuse angle, the diffei'ence 

 of inclination being obviously correlated with the less upright 

 position of the foot when standing, the long hoofs of the 

 Hartebeest being much less vertical than the short hoofs of 

 the Gazelles. 



In the hind foot there was only a shallow depression just above 

 Proc. Zool. Soc— 1910, No. LIX. 59 



