1896.] FKOM BRITISH SOUTH AI'EIOA. 801 



worn teeth, while others almost red- fawn have their teeth very much 

 less worn. In fact from this series it is impossible to say whether 

 age, sex, or season has much to do with the varying colour, 

 though there is little doubt that the immature animals are 

 invariably dark grey, showing the red first on the cheeks and 

 along the sides. The tail varies in length, but is generally some- 

 what longer than the head and body. 



3. Otomts ikeobatus, Bts. 



a. Ad.sk. J. Mazoe, Mashunaland, 8 January, 1895. 



jiJ. Ad. sk. cf . ,, » 4 August, „ 



y. Ad. sk. s • „ u 5 „ „ 



Collector's measurements, taken in the flesh, of a : — Head and 

 body 197 mm. ; tail 117 ; hind foot 28 ; ear 22. 



" Common in marshes. Native name ' Nappy.' " — J. ff. D. 



These specimens all agree with the Cape form in the general 

 gold and dark brown grizzled colour. 



. Mus onuisoruiLtjs, sp. n. 

 Ad. sk. y . Mazoe, Mashunaland, 14 August, 1895 (type). 

 ., 6. „ „ 14 „ 



., 6. „ „ 15 „ 



„ 6. „ ,, 19 ,, 



„ 6 • » 1) 17 January, ,, 



„ (J imm. Mazoe, Mashunaland, 16 January, 1895. 

 " Trapped in grass. Native name ' Mache.' " — J. ff. D. 

 Collector's measurements, taken in the flesh, of type 95.11.3.23 

 in Brit. Mus. : — Head and body 14G mm. ; tail 168 ; hind foot 28 ; 

 ear 19. 



Skull : greatest length 38 mm. ; breadth 18 ; breadth of brain- 

 case 15; nasals 14-5 X 4-5; frontals 12; parietals 6'8; inter- 

 parietals 4x95; basal length 32 ; henselion to back of palate 16 ; 

 palate to foramen mag. 12-5 ; incisive foramina 9 X 2-5. Upper 

 molar series 6; diastema 9-5; depth, parietals to bulla 12; 

 mandible, height at coronoid 11 ; incisor-tips to condyle 24. 



The whole of the upper parts bright reddish-fawn, strongly 

 sprinkled with black hairs ; cheeks and sides and thighs rather 

 paler, the dark hairs being less numerous and of a browner tint ; 

 the whole of the underparts, including the feet and hands, almost 

 pure white ; the colours of the upper and under sides being clearly 

 defined. All the hairs above and helow dark slate-colour hasally. 

 Ears moderate and naked, save for a few scattered rufous hairs. 

 Tail almost naked, but with a few very short adpressed hairs, 

 which increase in number and length towards the tip; scales iii 

 rings 10 to 10 mm., shining like mica in some lights, the basal 

 half is indistinctly bicoloured, brown above, whitish beneath, the 

 terminal portion unicoloured brown. 



Allied to M. Jcaiseri, Noack, but very distinct in colour. 

 This handsome Eat is not confined to the Mashunaland plateaii, 



52* 



