810 



>IK. n. 1. I'OCOCK ON TUK 



[June 14, 



The interlingual web of the hoof was smooth from the orifice 

 of the gland to the posterior area of the heels. 



Text-fig. 110. 



Hippotragus niger. 



A. Median vertical section of front foot : gl., pedal gland; o., its orifice. 



B. Anterior view of front foot : o., orifice of gland. 



C. Longitudinal section of preorbital gland; a., ocular end of gland. 



I was aljle to verify these facts upon a second specimen, a dry 

 skin kindly lent to me by Mr. Gerrard. This specimen had two 

 paii-s of teats, but no trace of inguinal glands was discoverable. 



Hippotragus equixus Is. Geoff. 

 (The Roan Antelope.) 



In a female specimen with two pairs of teats, but no inguinal 

 glands, for the examination of which I am indebted to 

 Mr. Geirard, I found the pedal glands to be of sulistantially 

 the sjime structure as in II. viger, except that there was a slight 

 constriction of the lumen of the gland, caused by a small in- 

 tegumental ridge ri.sing from its upper wall and partly dividing 

 it into an outer and an inner cliambcr, as in Oryx beisa. 



Genus Ajjdax Kaf. 



Addax xaso-maculatus Licht. {The Addax.) 



(Text-fig. 109, A, P., p. 908.) 



According to Owen, this species has neither preorbitfd nor 

 inguinal glands. 



J have seen only the front *and liind tii't of one dead example, 

 no other material being available. 



