460 Mr. E. C. Wroiigliton on 



(22) Leggada hella, subsp. 



cT. 106; ?.104. Mongalla, Bahr-al-Ghazal. 



Geograpliically these should be e'\{\\Qr gondokorfp. or enclava?, 

 but from Mr. Heller's descriptions I am unable to assign 

 thenij definitely, to one more than the other. 



(23) Epimys algJiazal, Wrought. 



S . 136. Wau, Babr-al-Ghazal. 

 ? . 136. Tembura, Bahr-al-Giiazal. 



(24) Epimys sp. (multimammate). 



c?. 125, 130, 131, 132, 133, 137 ; ? . 127, 128, 138, 139, 

 140, 141, 144, 145. Mongalla, Bahr-al-Ghazal. 



(25) Epimys asreh, sp. n. 



c?. 126 ; ? . 129. Eoseires, Blue Nile. 



An Epimys of the multimammate group, of medium size, 

 with a pure white abdomen. 



Fur of back rather short (7 mm.). General colour above 

 '" mouse-grey," with a very faint fulvous wash, the individual 

 hairs slate-grey, with short bui¥y-wliite tips; below pure 

 white, the hairs white to their bases. Face coloured like 

 back. An indistinct buff streak from below the eye, along 

 the flank, to the base of the tail. Chin, tiiroat, and inner 

 side of fore limbs pure wiiite, like the belly ; inner side of 

 hind limbs less purely white, the basal half of the hairs 

 being gre}'. Hands and feet white. Tail sparsely covered 

 with minute pale hairs, not visible to the naked eye, the 

 scales fine, about 10 to 5 mm. 



Dimensions unfortunately not recorded by the collector. 

 The tail, measured in the dry specimen, is 115 mm., and the 

 body-measure is probably the same or slightly longer; hind 

 foot 22, ear about 15 mm. 



Skull : condylo-incisive length 26 mm. ; zygomatic 

 breadth 14 ; nasals 12*5 ; palatilar length 13"5 ; diastema 8; 

 upper molar series 5. 



Hah. Eoseires on the Blue Nile. 



Type. Young adult male. Collector's number 126. Col- 

 lected by Mr. A. L. Butler in the summer of 1910. 



The two specimens closely resemble one another, except 

 that in the female the buff stripe is obsolete on tiie flank. I 

 know of no other multimammate mouse with a pure white 

 lower surface ; the form from Lake Chad is the nearest, but 



