80 Mr. 0. Tliomas on 



Size medium. Fur \on^, the oidinary hairs of the back 

 about 11-12 mm. in length, profusely mixed with much longer 

 bristly hairs, averaging 20-22 mm. in length on the rump. 

 General colour pale yellowish grey, the hairs each with a broad 

 buffy yellow subterminal ring, the whole very heavily lined with 

 the black tips to tiie ordinary hairs. Tips of long setae of rump 

 buffy yellowish. Under surface greyisli white, the bases of the 

 hairs slaty, their tips white ; no sharp line of demarcation on 

 sides. Sides of muzzle and orbital rings yellow. Ears yel- 

 lowish brown. Outer side of limbs like body ; inner side 

 thinly haired, but not naked, whitish ; upper surface of hands 

 and feet dull buffy white. Tail black above, dull whitish 

 below and on the sides. 



Skull of normal size and proportion-?, the incisors not un- 

 usually large. Palatal foramina narrow, little open, reaching 

 just behind the anterior point of ?u\ 



Dimensions of the type (measured by the collector) : — 



Head and body "110" mm. (probably more) ; tail 112; 

 hind foot 29 ; ear 17. 



Skull : greatest length 32 ; basilar length 26*3 ; zygomatic 

 breadth 17; length of nasals 11; interorbital breadtli -I'O ; 

 breadth of brain-case 14; palate length li-o ; diastema 8; 

 palatal foramina 6*1 X 1"8 ; length of upper molar series 6*8 ; 

 breadth of m^ 2*1. 



JIab. Fra-Fra Country, Gold Coast Hinterland. Alt. 150 m. 



Ti/pe. Male. B.M. no. 99. 6. 15. ^13. Collected 7th 

 February, 1899, and presented by Capt. W. Giffard. 



This species is much paler and yellower than A. ruJinuSj 

 the only other W. -African species without dorsal liueatiou. 



Lophiomys testudo, sp. n. 



As long ago as 1898 Mr. F. J. Jackson made the first dis- 

 covery of the remarkable genus Lophiomys in East Africa, 

 and presented the specimen which he had captured at the 

 liavine Station to the National JMiiseum. Being in doubt 

 as to its relationship with the Somali Lopliioniys Sinitliti^ 

 lihoads, Mr. de Winton, when working out Mr. Jackson's 

 collection, made no reference to the Lophiomys, but afterwards 

 incidentally mentioned it in Anderson's' Mammals ofEgypt' *. 



In 1902 Mr. C. S. Betton presented to the Museum two 

 further specimens, which had been captured, the one by 

 liiraself and the other by Mr. S. Couper, in very much the 

 same region. 



A comparison of this material with an Abyssinian example 



* P. 291 (1902). 



