218 Mr. R. T. Pocock on some 



round the upper lid of the nostril. Viewed from the front 

 it is exceedingly wide and laterally attenuated, with a 

 coneavo-convex, sinuons upper edge. The ])liiltrum, whieli 

 is broad, angular, and nngrooved, is inferiorly abbreviated, 

 ending in a point a little above the middle of the ui)per lip, 

 tlie lower portion of which is continuously hairy across the 

 middle line. The surface of the rhinarium is transversely 

 striated, not roughened and tessellated. 



In his paper on the anatomy of the Gnu, LJWniberg 

 (K. Vet.-Akad. Handl. xxxv. no. 3, p. 48, 1901) paid no 

 special attention to the rhinarium, contenting himself with 

 a reference to the descriptions published by others, notably 

 by Sclater and Thomas in the ' Book of Antelopes/ vol. i. 

 This brief description, however, contains no mention of the 

 jmuches in the internarial septum, because they are com- 

 pletely concealed in dried skins. No doubt this fact 

 accounts for their having hitherto apparently escaped 

 detection. At all events I have not come across any record 

 of their occurrence. 



I am uual)le to suggest any explanation of the function 

 of these pouches, unless they act as traps for the niaggots of 

 ])arasitic dipterous insects {CEstrus) whose usual habit it 

 is to pass up the true nostril into the narial passages, where 

 they frequently set up serious disorders in Ruminants. At 

 all events, these parasites would be innocuous in the pouches. 



^\\e penis (fig. 2, D) differs from that of Damaliscus py- 

 garcjus in being apically attenuated, Avithout trace of the 

 cordate thickening at the end, and in the termination of 

 the urethral canal in a short process on the left side of the 

 apex, beyond which it projects for a very short distance. 



Genus Gorgon, Gray. 

 Gorgon taurinus, Burch. (p. 906). 



An example of G. tnurinus alhojubatiis, four and a half 

 months old, had the muzzle constructed as in Connoc/Kctes 

 gnou, except that the peculiarities were less exaggerated ; 

 it was less depressed and narrower and the rhinarium seen 

 from the front was deeper from above downwards and the 

 shortened philtrum showed a nairow groove. 



T\\e preorbitul gland was scantily clothed with long hair 

 and its surface was mesially depressed and saucer-like. 



'\':\\e j)enis (fig, 2, E) of an adult male of the typical race 

 was less attenuated apically than in that of Connochcetes 

 ^nou and the urethral canal was not prolonged beyond the 

 end of the glans. 



From evidence supplied mainly by the digestive tract, 



