202 Mr. G. Dollman on the African Shreios 



In general dimensions more as in the nana group, body 

 very small. Fur long, hairs on back from 5 to 6 mm. i:i 

 length. 



Colour (from spirit-specimen) dark brown above and 

 below, the belly scarcely paler. Hands and feet equally 

 dark. Tail long and slender, finely haired, dark brown 

 above^ a shade paler below ; bristle-hairs almost entirely 

 absent, a few very short ones near the base. 



Skull in general build like that of 7iiobe, but very mucb 

 smaller; brain-case very high and rounded, the junction of 

 the lambdoidal and sagittal sutures situated fairly far for- 

 ward, as in niobe and the flatter skull oifumosa. Interorbital 

 region very broad behind, narrowing in front rather abruptly. 

 Maxillary region narrow. Teeth small, anterior upper 

 incisors directed forwards in such a manner that they do 

 not project downwards below the level of the second incisors ; 

 second and third upper unicuspids small, third a little 

 broader than second. Cheek-teeth of the same square shape 

 as in niobe, the last upper molar exhibiting the same 

 characteristic form, the main grinding-area square-shaped, 

 abruptly narrowing externally into a small lateral point. 

 In length this skull is more as is found in the nana group, 

 but its build is so different from the exceedingly flat skulls 

 of nana and its allies that it is impossible to consider it in 

 any way closely related. 



Dimensions of co-type (in spirit) : — 



Head and body 44 mm. ; tail 41 ; hind foot 10'7; 

 ear 7*3. 



Skull: condylo-incisive length 15'3 ; greatest breadth 7'3 ; 

 least interorbital breadth 3"4; greatest posterior inter- 

 orbital breadth 4*2 ; length of palate 6 ; postpalatal length 7 ; 

 greatest maxillary breadth 4*3 ; depth of brain-case 4'4; 

 length of upper tooth-row 6'3. 



Hab. Between Badditu and Dime, near Lake Margharita, 

 N.E. of Lake Rudolf. 



The co-type in the British Museum (B.M. no. 98. 2. 5. 6) 

 is an adult male. 



The minute size of this species immediately distinguishes 

 it from all the other members of this group. The only 

 points which it has in common with nana and its allies are 

 the small size of the body and skull ; the high brain-case, 

 square-shaped cheek-teeth, great posterior breadth of the 

 interorbital region, and almost entire absence of caudal 

 bristles show beyond doubt that it is most nearly related to 

 niobe. 



