Spec ies and Subspec ies of Ma mmals. 105 



The general appearance of tliis species is that of a yell Mvi.sh 

 animal, with a brownish back and a rediiisli iiead and limbs, 

 and underparts wliiti.sii grey. This is the effect the various 

 colours of the iiairs produce when glanced at. In coloration it 

 belongs to tiie light-hued baboons, of wiiicii section P.bahida 

 may be considered a representative. Looked at in certain 

 lights the hairs have a greenish-yellow tint, but when care- 

 fully examined the colours are as given in the description 

 and unlike any of tiie other species. Two specimens were 

 obtained by Sir H. H. Johnston in Nyasaland, the type at 

 Fort Johnston and the other at Zomba on Lake Nyasa. 

 The s|)ecies bears no resemblance whatever to P. pruinosus, 

 Thomas, also procured at Fort Johnston, either in colour or 

 in the cliaracters of the skull. 



Genus COLOBUS. 

 Colobus tephrosceles, sp. n. 



Type locality. Ruahara River, Toro, altitude 4000 feet, 

 Central Africa. 



Gen. char. Similar to C. riifomitratus, but differs in not 

 having any black on the head between tufts, in the pale 

 coloured arms and legs, in the grey-brown basal portion of 

 the tail, in the absence of black stripe between ears and 

 shoulders, and in the feet and hands being browjiish black 

 instead of dark olive-brown. Ui)right tufts on sides of crown 

 above ears. 



Colour. A narrow black band on forehead extending 

 backwards to ears ; top of head and nape dark rusty brown ; 

 upright tufts dark rusty brown, mixed with some brownish- 

 black hairs tipped with yellow, these showing chiefly on the 

 outer side of the tufts ; sides of head between ears and eyes 

 blackish grey, the hairs hiding the ears ; side of lip purplish 

 grey, this extending over the lower jaw; hairs on upper part 

 of back long, covering the shoulders, brownish black, grading 

 into dark Front's brown on sides and rump ; outer side of 

 arms pale greyish brown ; outer side of legs pale brownish 

 grey, lighter than the arms ; underparts and inner side of 

 limbs greyish white; hands brownish black; feet Vandyke 

 brown ; tail, basal third greyish brown, remainder blackish 

 brown, grading into black at tip. 



Measurements. No skull to type specimen. Another skull 

 without skin, procured by Sir 11. H. Johnston in Toro, has 

 total length 116 mm.; occipito-nasal length 95; hensel 84 ; 

 zygomatic width 78 ; intertemporal width 4-1 ; palatal 



