72610 Mammals from East Africa, G55 



zygomatic breadth 22"7; iiiterovbital constriction ll'J: ; 

 squamosal breadth of brain-case 18 ; length of nasals 10*5 ; 

 greatest breadth across nasals 6 ; palatilar lengtli 15' 7 ; 

 leng-th of upper tooth-row 7*2. 



Hah. Marsabit. Altitude 4500 feet. 



Type. Adult male. Original number C. Collected 

 January Ist^ 1911. 



This Marsabit race is readily recognized by the pale 

 yellowish olive-coloured dorsal surface, light-coloured face, 

 and yellowish-bufF feet. 



Paraxerus ochraceus animosuSj subsp. n. 



c? . 386, 387 ; ? . 409, 411, 449. Mt. Nyiro. 



An exceedingly pale-coloured race related to P. ochraceua 

 electus, Thos. 



Size about as in the foregoing* form. General colour far 

 paler and whiter than in any of the allied species ; dorsal 

 surface light greyish olive speckled with black and pale 

 yellowish white, the general effect very much lighter in 

 colour than in electus or augustus. Flanks pale olive-gTcy, 

 faintly speckled with light brownish black. Side stripes 

 invisible. Back of head and forehead similar in colour to 

 rest of dorsal surface. White stripes above and below the 

 eyes wide and well defined. Sides of face creamy white ; 

 lateral cheek-stripe very much fainter and less conspicuous 

 than in electus or the allied races. Backs of hands and feet 

 creamy white, hairs with the dark blackish bases and light 

 tips. Under surface of body white, many of the hairs on 

 the belly with grey bases and white tips. Tail much as in 

 electus but palev throughout. 



Skull similar to that of Paraxerus ochraceus augustus. 



Dimensions of the type (measured in the flesh) : — 



Head and body 150 mm.; tail 156; hind foot 38*5; 

 ear 20. 



Skull : greatest length 39*5 ; condylo-incisive length 36; 

 zygomatic breadth 22*5; interorbital constriction 10*9; 

 squamosal breadth of brain-case 17 ; length of nasals 10*8 ; 

 greatest width across nasals 5"3; palatilar length 15*8; 

 length of upper tooth-row 7"2. 



Hah. Mt. Nyiro. Altitude 6000 feet. 



Type. Adult female. Original number 449. Collected 

 on April 6th, 1911. 



The light greyish-white appearance of this race at once 

 distinguishes it from all the allied forms of the ochraceus 

 group. 



