new African Rodents and Insectivores. 147 



anerythrus, more approaching a "citrine-drab" hue, the tone 

 deader and less glossy than in the typical form. The dull 

 rufous suffusion across rump and hips, as found in anerythrus, 

 practically absent, the legs only slightly more fulvous than 

 the body. Light lateral lines much less conspicuous than in 

 anerythrus, tending towards obsolescence. Buffy wash on 

 belly-hairs paler, more creamy and less ochraceous than in 

 anerythrus. 



Dimensions of type : — 



Head and body 202 mm. ; tail 193 ; hind foot 43. 

 Upper molar series, exclusive of p 3 , 7'2. 

 Hob. Upper Shari River and adjacent parts of R. Ubangui. 

 Type from the Ba-mingui River, Upper Shari. Alt. 2000'. 

 Other specimens from Krebidje, R. Tomi, Ubangui, and 

 St. Esprit Mission, on Ubangui above Kerarao. 



Type. Adult female. B.M. no. 7. 7. 8. 89. Original 

 number 23. Collected 10th August, 1905, by Capt. Boyd 

 Alexander on the Alexander-Gosling Expedition. Presented 

 by the Expedition. Six specimens examined. 



A paler, less saturate form of F. anerythrus. The fine 

 series of true anerythrus obtained by Dr. Christy on the 

 Welle for the Tervueren Museum has enabled me to distin- 

 guish this Shari subspecies. 



Tatera dichrura, sp. n. 



T. Hodon group. 



Similar in size, proportions, general colour, and cranial 

 characters to T. ruwenzorii, but the tail prominently con- 

 trasted white on its sides and below, while in T. ruwenzorii 

 and the allied species T. dundasi and smitliii the underside of 

 the tail is soiled drabby white or even pale brown. Teeth 

 heavier and bullae rather larger than in T. valida. No 

 blackish patch below ear as in the latter. 



Dimensions of no. 1455 (type), measured in skin : — 



Head and body 175 mm. ; tail 183; hind foot 35*7. 



Skull: greatest length 43; condylo-incisive length 38*1; 

 zygomatic breadth 22 ; interorbital breadth 7*2 ; anterior 

 palatal foramina 7*8; posterior palatal foramina 1'7 ; upper 

 molar series 6'6. 



Hob. Upper Welle R. ; Congo. Type-locality, Poko. 



Taterillus congicus, sp. n. 



Near T. emini, but much darker-coloured; the dorsal area 



specially darkened. Size comparatively large, about equalling 



the largest of the known species. General colour dark 



tawny brown, the sides and rump clear tawny, the back 



