338 Description of a new species of Tibetan Antelope. [No. 173. 



Col. Smith's proposed diagnostics of genera have no pretensions to be 



so regarded. 



With regard to the specific distinctness of the Goa, there must remain 

 some doubt, until its essential and trivial characteristics, as above given, 

 have been compared with those of the species it most resembles. Books 

 cannot well be trusted on this head, and the whole of my collections 

 have been deposited in the British Museum. The size and proportions 

 of the Goa are quite those of bennettii, and both species are alike dis- 

 tinguished by black tails and horns of somewhat similar form. But the 

 difference of habitat, of pelage, of colour, the inguinal pores, knee tufts, 

 and females horned of bennettii, not to mention differences of detail 

 and of size in the horns and tails, sufficiently distinguish this species 

 from the Goa. Antilopa arabica, or the Ariel, has (like bennettii ?) the 

 structure of a true Gazella of Ogilby, which at once suffices to prove 

 its distinctness from our species, not to dwell on diversities of colour, 

 manners, habitat, &c, all very obvious. Lastly, gutturosa, or the Dseren, 

 is a much larger animal,* with much smaller horns ; and its suborbital 

 pores, its knee tufts, its protuberant larynx, and glandular preputial bag, 

 are all marks impossible to be mistaken, and not found in the G6a. 

 The following are the dimensions of a fine old male of the Goa : 



Snout to rump, , .... 3 7 



Height, at shoulder, r. 2 



Head to occiput, 8 



Head to base of horns, ... 6 



Tail 3-4 



Ears 5 



Fore-leg, top of cannon-bone to end of hoof, 9 1-8 



Hind-lea:, ditto ditto ditto...... 10 



Horns, length by curve, 1 1 



Ditto ditto, straight 11 



Ditto, greatest divergence, 4 3-10 



Ditto, basal interval, 4-10 



Ditto, terminal interval, 4 3-10 



Ditto, periphery of base, f 



On the Wild Sheep of Tibet, with plates. 

 CAPRID^E. 

 Genus. — Ovis. 

 Species. — O. Ammonoides mihi. 

 In No. Ill of the Bengal Asiatic Journal for 1841, I have described 

 two species of wild sheep belonging to the Himalaya and Tibet. Hav- 

 ing recently received a splendid specimen of the male of one of these 

 species, I recur to the subject with a view of more fully fixing the cha- 

 racters of this animal, whose close affinity to the Argali of Pallas renders 



* The Dseren is 4* feet long, and 1\ feet high. Horns 9 inches, 

 t Sic in MS— Eds. 



