Mammals from British East Africa. 521 



washed with a slate-black tint, and with rather larger hands 

 and feet. 



Size of body and tail as in T. harringtoni. General colour 

 of back bright buff, washed over with slaty black, the black 

 coloration most promineut on the back of the head. Poste- 

 rior back and rump buff-coloured, the slaty-black tint only 

 appearing in this region as a broad median stripe, but 

 spreading out on the anterior back and shoulders. Hairs 

 of back (in dark region) slaty black, with narrow subter- 

 minal buff-coloured rings ; extreme tips blackish. Flanks 

 bright yellowish buff (cinnamon no. 1, ' Repertoire de 

 Couleurs ') ; hairs with slate-grey bases, paling to pure white 

 and tipped with buff. Face with well-marked black stripe 

 extending back from tip of nose to dark ai'eaon head. Sides 

 of nose and face buff-coloured, eyes surrounded with buff- 

 coloured hairs. Lips white. Backs of hands and feet white, 

 the feet marked on the tarsal and metatarsal regions with 

 buff. Under surface of body white, hairs of belly white to 

 roots. Tail much as in harrwytoni, but more hairy and 

 blacker, underside markedly lighter than upper. 



Skull much the same pattern as that of harringtoni ; brain- 

 case broader and molar teeth larger. 



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



Head and body 92 mm. ; tail 128 ; hind foot 30 ; ear 17-5. 



Skull : greatest length 30 ; condylo-incisive length 26 ; 



zygomatic breadth 155 ; length of nasals 11'5 ; breadth of 



brain-ease (across squamosal region) 9'6 ; length of upper 



molar scries 5. 



Hub. Nyama Nyango, Eusso Nyiro. Altitude 3200 feet. 

 Type. Subadult female. Original number 206. Collected 

 on February 2nd, 1911, by Mr. A. B. Percival, and pre- 

 sented by him to the British Museum. 



It is interesting to find a member of the genus Tuterillus 

 exhibiting the striking coloration met with in tbis species. 

 Although agreeing in general proportions with T. harriyig- 

 toni, the conspicuous dark markings on the back of this 

 Eusso Nyiro form readily distinguish it from the Lake 

 Rudolf species. 



Tat era iconica, sp. n. 



A light-coloured species allied to T. vicina, Pet. 



Size and general proportions much as in T. vicina. Colour 

 of dorsal surface pale huffy brown, washed with dark 

 brownish on the posterior part of the back, the general effect 

 very much lighter than in T. vicina, where the predominating 



