142 SIR V. BROOKE ON A NEW GAZELLE. [Feb. 17, 



decidedly from Gazella arabica. In the latter the hair is short, 

 close-set, and of a rich grizzled bay ; whilst the coats of the Muscat 

 Gazelles are remarkably long and soft, and of a very beautiful silvery 

 grey colour. In size they are inferior to G. arabica, and in delicacy 

 of form and beauty even exceed that lovely species. From G. dorcas, 

 to which species they bear more resemblance, the Muscat Gazelles 

 differ in their smaller size, in their very different and much darker 

 colour, and in the intensity of the facial and lateral markings. 

 These differences can be appreciated at a glance in the Society's 

 Menagerie, where the two species are represented in adjoining 

 yards. 



I propose to confer upon this species the name of Gazella musca- 

 tensis. 



For the explanation of the terms used in the following description, 

 and for the exact value I attach to the term " species " as applied 

 to the different modifications of Gazella, I must refer to my former 

 paper on the genus. 



Gazella muscatensis, sp. nov. (Plate XXII.) 



Hair very soft and long. Central facial band rufous fawn on the 

 forehead, becoming darker as it descends, forming a distinct dark 

 nose-spot. Light facial streaks very distinct, running over and 

 stopping immediately above the eye, white; dark facial streaks 

 distinct, black, becoming more rufous as they approach the angles of 

 the mouth. Spot under and behind the eye, space round the muzzle, 

 chin, throat, breast, belly and rump white. Dark lateral band very 

 distinct, grizzly black. Knee-brushes and tail black. Neck and limbs 

 below the carpal and tarsal joints fawn-colour, this colour being 

 almost rufous on the limbs. Back, sides, and haunches silvery grey. 

 Horns rather slender, compressed laterally, strongly and closely 

 annulated, with their points in both sexes turned inwards and 

 forwards. Ears long. Size inferior to that of Gazella dorcas. 



Hab. Muscat. 



A large number of skeletons of Gazelles received lately by Mr. 

 Edward Gerrard from North-eastern Africa (which specimens Mr. 

 Gerrard, with his usual kindness, has given me every facility for 

 examining) have shown me an error in my former paper which I am 

 anxious to take this opportunity of correcting. At page 552, I thus 

 write : — " In no existing Gazelle have I as yet been able to discover 

 the smallest trace of the external digits in either extremity." I 

 now find from an examination of rough uncleaned specimens that in 

 Gazella scemmeringii, G. leevipes, and G. Isabella, long filamentary 

 second and fifth metacarpals are present, but no sign of the corre- 

 sponding metatarsals. The unequal phalanges of the external digits 

 of the hind extremities appear to be also represented. The delicacy 

 and rudimentary condition of these bones causes them to be fre- 

 quently lost in Museum specimens. 



