External Characters of Ruminant Arliodactyla. 443 



p. 153). It ends in an elongated subovate portion defined 

 by a shallow constriction. The urethral canal, however, 

 reaches the extremity or! this, lying rather upon its right 

 than on its left side. 



Genus Tragelaphus, Blainv. 



Tragelaphus scriptus, Pall., and its subspecies (p. 929). 



The only specialized cutaneous glands which occur in this 

 species and its numerous affiliated forms, of which sylvaticus 

 is the commonest in our Zoological Gardens, are the inguinals, 

 which, according to my examination of a large number of 

 specimens, are invariably present as a pair of small pouches 

 lying far out in front of the four teats, the orifice being in 

 the fold between the thigh and. the abdomen. The only 

 other genera of Tragelaphines which possess these are 

 Limnotragus aud Strepsiceros. As in all the African Trage- 

 laphines preorbital and inter-digital pedal glands are absent. 

 The glands between the false hoofs of the hind legs, found 

 in Tetraceros, Boselaphus, Strepsiceros, and Taurotragus are 

 also absent. 



The rhinarium is variable with respect to the width of the 

 area between the edge of the lower lip and the nostrils. 

 Sometimes there is a definite narrow philtrum as in Strepsi- 

 ceros and adult examples of Taurotragus^ but not infrequently 

 the hair of the upper lip does not encroach so far towards 

 the middle line, leaviug a broader irregularly shaped naked 

 space. This variation may be a matter of age, or it may 

 prove to have a racial significance. Otherwise the rhinarium 

 seems to resemble that of Taurotragus and Strepsiceros, 

 except that the posterior edge between the angles of the 

 nostrils is straight from side to side. 



The penis, as described and figured by Lonnberg (Ark. 

 Zool. Stockholm, (5) v. no. 10, p. 7, fig. G, 1909), is distally 

 attenuated, with a terminal sigmoid flexure, the urethral 

 canal not being prolonged beyond the tip of the glans penis. 



Genus Limnotragus, Scl. & Poc* 



Limnotragus spekei, Scl. (p. 930). 



Examples of the two races gratus and selousi resemble 



* Although this genus is of very doubtful value, it may be explained 

 that, at the request of Mr. Thomas, who in 1900 was compelled by ill- 

 health to abandon temporarily all zoological work, I took his place in 

 the completion of vol. iv. of the ' Book of Antelopes.' Strictly speaking, 

 therefore, although the matter is of no great moment, this generic name 

 should be ascribed to Sclater and myself. 



