NO. 2 MAMMALS FROM BRITISH EAST AFRICA — HOLUSTER / 



155424 155425 

 mm. mm. 



Greatest length 115 ii4 



Condylobasal length 264 261 



Palatal length I34 ^2>2 



Muzzle to orbit •. 141 I37 



Interorbital breadth 70 65 



Upper tooth row 88 85 



Length of horn 565 580 



Distance between points 290 263 



Grant's gazelles were quite plentifitl at Elmenteita, though by no 

 means so abundant as the Thomson's gazelles. 



GAZELLA GRANTI NOTATA Thomas 



Skull and head skin of adult male, shot near the upper waters of 

 the Guaso Nyiro River, on the Laikipia Plateau, July 28. 



The general color of the skin of head and neck is much darker 

 than in specimens of Gazclla g. graiiti from the Kilimanjaro region. 

 The horns are very dififerent, also, spreading but little at the points 

 and with much less of the graceful gazelle curve of typical granti. 

 There appear to be no constant cranial characters by which skulls 

 without horns of the two forms can be separated. Measurements 

 of the skull : Condylobasal length, 260 millimeters ; palatal length, 

 129; greatest breadth, 11 1 ; muzzle to orbit, 138; interorbital breadth, 

 61; upper tooth row, 81; length of horn, 512; distance between 

 points, 160. 



This gazelle was seen by the expedition only on the Laikipia 

 Plateau, where it was not especially plentiful. 



ORYX ANNECTENS, new species 



Type— Skin, Cat. No. 155436, U. S. N. M., collected in the vicin- 

 ity of the Guaso Nyiro River, Laikipia Plateau, British East Africa, 

 about August 8, 1908, by John Jay White. 



Diagnosis. — In general like Oryx heisa, but lateral stripe narrower 

 and head markings somewhat approaching those of O. callotis; skull 

 as in O. bcisa, but molars conspicuously larger, their size nearly as 

 in O. callotis. 



Color. — The skin dififers in color and markings from a Berbera, 

 Somaliland, specimen and all plates and descriptions of the Abys- 

 sinian and Somaliland animals. The main body color is an ecru 

 drab with a buffy tint and a decided vinaceous cast. The lateral 

 stripes, which in heisa are broad bands about 30 mm. wide in the 



