18 DR. A. GTJNTHER ON TWO [Jan. 6, 



relates, unless it be the organ by which peculiar sounds are produced, 

 as mentioned by Brehm. It is not peculiar to the male, though 

 more developed in that sex than in the female. The hairs on the 

 crown of the head are prolonged, stiff, pointing backwards to between 

 the ears, forming a flat depressed crest, as in Neotragus saltianvs. 



The colour of the body of the animal is a brownish yellow, finely 

 grizzled with brown — -this colour being produced by each hair having 

 two or three broad brown rings, the terminal ring forming sometimes 

 the tip of the hair, sometimes being somewhat remote from it. The 

 grizzly ap])earance gradually changes into a uniform light reddish- 

 brown, which occupies the whole of the fore and hind lej^s. The 

 upper part of the throat, the abdomen, and the inner side of the 

 fore legs and thighs are dirty whitish ; lower part of the throat 

 tinged with brownish ; the long hairs of the head brown, with broad 

 yellowish rings ; snout and outer side of the ears brown ; a white 

 streak above the eye. 



The horns are very similar to those of Neotragus saltianus. They 

 are almost parallel, marked by strong, but rather irregular, sub- 

 reticulated annulations, which completely surround the horn ; these 

 disappear towards the middle of the length of the horn. The annu- 

 lated portion is also longitudinally rugose, the terminal third only 

 being smooth. 



The following are the measurements of the female : — 



in. 



Length of the head 4| 



>> )) car 2^ 



„ „ body and neck 13 



„ „ fore leg (from the elbow-joint) 7\ 



„ „ hind leg (from the knee) .... 10 



„ „ hind foot (from the heel) . . 6J 



Measurements of the male : — 



Length of the head 5| 



„ „ ear (shrunk) 2| 



I may add that the opening of the lacrymal gland is very 

 distinct, that the tail is very short, apparently composed of a few 

 vertebrae only, and that the spurious claws are as small as in the 

 Abyssinian species. 



Any doubts which might have been entertained with regard to 

 the distinctness of this species disappear on comparison of the skulls 

 of the two animals. The lacrymal groove, which in Neotragus 

 saltianus is rather shallow, is so much deepened in the Somali 

 species as to receive easily the end of a man's thumb. Secondly, 

 the lateral ramus of the intermaxillarj' is singularly curved in the 

 shape of an S, very slender, and separated from the lacrymal bone 

 by a broad ascending process of the maxillary, which, therefore, 

 touches the side of the nasal bone (see fig. 2, p. 19). In the 

 Abyssinian species the intermaxillary is straighter and stouter, 

 extending to the lacrymal, with which it forms a suture (see fig. 4, 

 p. 19). 



