216 Mr. H. I. Pocock on some 



of the pastern, but with a comparatively long slit-like orifice. 

 On the hind foot the gland is represented merely by a 

 shallow naked depression. 



Damaliscus pygargus, Pall. 



Differs in none of the particulars described above from 

 D. albifrons, except that the philtrum fails to reach the edge 

 or the upper lip. 



In the male the penis (fig. 1, D, E) ends in a well-defined 

 cordate thickening, broad at the base, narrowed at the apex. 

 The urethral canal is not produced beyond the extremity of 

 the glans, but terminates in a groove in the middle of its 

 under side. 



The figure of the penis of D. albifrons, published by 

 Garrod (P. Z. S. 1877, p. 11, fig. 2.2), and apparently copied 

 by Gerhardt, represents this organ as apically attenuated 

 and provided with a short tubular urethral process lying 

 along the left side of the end of the glans and free from it 

 to a very limited extent, but not projecting beyond it. 



It seems to me to be very unlikely that two species 

 so closely allied as D. albifrons and D. pygargus differ in 

 reality in the structure of the penis to the extent indicated 

 by Garrod's observations and my own ; and since Garrod's 

 figure shows close agreement between the penis of D. albi- 

 frons and that of Connochcetes, I am disposed to think it 

 likely that the penis of D. pygargus I examined must have 

 been abnormal or, perhaps, mutilated with respect to the 

 end of the urethra. 



There the matter must rest until the opportunity of 

 examining this organ in other examples of D. pygargus 

 occurs. ' Considering the rarity of the species we may have 

 to wait long for such a chance to verify or disprove the. 

 point at issue. 



Genus Connochcetes, Licht. 

 Connochcetes gnou, Zimm. (p. 904). 



I have very little to add to my original account of this 

 species except some facts regarding the rhinarium and penis 

 which were not described in 1910*. 



The muzzle (fig. 2, A, B, C) is a gross exaggeration of 

 the type seen in Damaliscus, being wider and having the 

 valvular lids of the nostrils more protuberant and fleshy. 



* In one specimen the surface of the preorbital gland showed a central 

 saucer-like depression. Hence this surface is not always Hat, as 

 described in 1910. 



