188 Mr. O. Thomas on Tico nem East- African Mammals. 



than ill any other species of the genus. Rings about eight 

 in number, sliarply defined, and very different from the low 

 and little- defined rings of N. hastatus, scopa7'ius, &c. Postero- 

 external aspect of the horns angular or even developed into a 

 longitudinal keel. Direction of horns more nearly in the line 

 of the nasal bones than in the allied species, their anterior 

 profile slightly curved backwards basally, forwards terminally, 

 but the curvature is so slight as to be hardly worth men- 

 tioning. 



Dimensions of the typical skull ( ^ ) : — 



Basal length 142 miliiin.; greatest breadth 76; muzzle to 

 orbit 86 ; nasals 57 x 20 ; palate length 91 ; gnathion to 

 front of j5.* (alveolus) 46. 



Horns : length in a straight line 130 ; basal circumference 

 63 ; greatest basal diameter 21. 



Ilab. Lamu, British East Africa. 



Type: B.M. 87.3.9.2. Presented and collected by Consul 

 J. G. Haggard. 



This species is based on three skulls, which, when they were 

 received in 1887, 1 very doubtfully referred to iV. hastatus, 

 Peters, the Zambezi Oribi, a reference which has caused it to 

 be known by the latter name to East- African sportsmen gene- 

 rally *. Now, however, that the Museum has obtained some 

 Oribis from Nyasa, representing Peters's species, I am enabled 

 to see that the Lamu animal is really quite distinct. 



Further details, with figures, will be given in the ' Book of 

 Antelopes.' 



JMr. Haggard and Mr. Jackson both agree in stating that 

 the Swahili name of this antelope is " Taya." 



Anomalurvs cinereus, sp. n. 



Similar in size, character of fur, and proportions of ears to 

 A. orientaJis, Pet., to which it is evidently most nearly allied, 

 but the general colour above, instead of being brown, is ashy 

 grey, and below pure white instead of rufous; the extreme 

 bases of the belly-hairs are, however, still pale slaty grev. 

 The pale colour of the chest runs forwards as far as the chin, 

 instead of stopping on the throat, and on each side it extends 

 upwards as a prominent white half-collar to the ears. Hairs 

 at back of bases of ears brown, without the usual ashy tips. 



Hind foot 62 millim. 



Hah. Upper Ptovuma River, towards Lake Nyasa. 



Type : B.M. 95.1.17.1. Collected by tlie Rev. J. Hains- 

 wortii, and presented to the National Museum by Canon 

 H. B. Tristram, F.R.S. 



• Cf. Jackson, ' Badminton Big-Game Shootin;?,' ii. pp. 285 and 800 

 (1894). 



