External Characters of Ruminant Artiodactyla. 41f> 



(hilar. On the fore feet no such fringes exist, the false 

 hoofs being small, close together, and overlapping*. 



Strepsiceros imberbis, Blyth. 



Of this species I have seen one fresh specimen, an imma- 

 ture castrated male from Somaliland, and the feet and 

 inguinal area of an adult female from British East Africa, 

 kindly brought home for me by Mr. F. C. Selous. 



These specimens resemble in nearly every particular the 

 example of S. strepsiceros, above described. T!ie upperside of 

 the rhinarium, however, was not overgrown with hair to quite 

 the same extent, and there was a single pair of inguinal 

 glands, each consisting of a narrow sack 2 inches deep, with 

 a small circular orifice, and lying far out in advance of the 

 two pairs of mammae, as in Trayelaphus and Limnotrayus. 



The glands close to the false hoofs (tig. 3, D) of the hind 

 feet were exactly as described in <S. strepsiceros, and on the 

 fore feet the false hoofs were smaller than on the hind feet 

 and separated by a narrow strip of naked skin, horny i.i 

 one of the specimens. 



The penis of the castrated male was very small and simple, 

 with a bluntly rounded termination. The urethral canal 

 was not produced beyond the end of the glans. 



Strepsiceros has hitherto been distinguished from Trage- 

 laphus merely by small differences in the horns of very little 

 systematic value. Particularly satisfactory, therefore, is the 

 discovery of the difference between the two genera supplied 

 by the glands adjoining the posterior false hoofs. 



Genus Taurotuagus, Wagn. 

 Taurotragus oryx, Pall. (p. 932). 



To the description of the cutaneous glands of this species 

 published in 1910 1 have to make one important addition. 

 This is the presence of glands close to the false hoofs of the 

 hind legs, precisely resembling those described above under 

 Strepsiceros. These are as well developed in a calf one day 

 old as in the adult, and they are the only specialized cuta- 

 neous glands present in the genus, so far as my observations 

 go (fig. 3, A, Cj. I have never succeeded in finding a trace 

 of the preorbital gland described by Mr. W. L. Sclater, 

 and am compelled to disbelieve in its existence. 



The rhinarium (tig. 2, A, B, C) in the adult is not " boviue/' 



.* Nyala angasi resembles Strepsiceros and differs from Trayelaphus iu 

 possessing the glandular fringes by the false hoofs of the hind legs. 



