298 MR. OLDFIELD THOMAS ON [Apr. 21, 
Dimensions of the type :—. 
Head and body 90 mm.; tail 70; hind foot (s. u.) 23; ear 14. 
Skull—ereatest length 28 ; basilar length 22 ; zygomatic breadth 
13; nasals 10x 3:4; interorbital breadth 4:4; breadth of brain- 
case 12; palate, length 12-2; diastema 6°7 ; palatal foramina 5°6 ; 
length of upper molar series 4°9. 
Type. Old male. B.M. No. 3.2.8.15. One specimen only. 
A Fashoda striped rat presented by Mr. R. M. Hawker in 
1901 being identified as Arvicanthis zebra, the present species 
may be readily distinguished from it by its much smaller size 
and more buffy coloration. 
Capt. Dunn tells me that this rat was very common in the 
cultivated fields of the natives, burrowing in their crops of dukhan. 
It is a very handsome and distinct species, and I have much 
pleasure in connecting his name with it. 
12. AcCoMYS WITHERBYI de Wint. 
73. 3. Katul Hills. 30 October. 
13, LEGGADA TENELLA, sp. 0. 
7. Old 2. Roseres, Blue Nile. 14 September, 1902. (B. M. 
IN@s Bee) | Wgyae. 
‘Found in burrows in cornfield ; had 7 young in the womb.”— 
IND. 
A very small species of the Z. minutoides group. 
General colour of cheeks and sides a clear sandy or ochraceous 
buff, with a distinct darker median dorsal area, commencing as a 
narrow well-defined line on the nose, broadening on the crown, 
and extending, though less sharply defined, all down the back, 
and dying away on the rump. Under surface pure sharply 
defined white. No lighter markings round eyes. Ears small, 
evenly rounded, grey, their edges faintly whiter; a large and 
prominent white patch behind and below their posterior bases. 
Fore limbs wholly white; hind limbs with a narrow line of the 
body-colour continued down on the hinder side to the heel, other- 
wise white. Tail about as long as the body without the head, 
brown above, inconspicuously lighter below. 
Skull smaller and narrower than in the Cape Z. minutordes, 
with square and well-defined supraorbital edges. Palatal foramina 
ending level with the anterior fourth of m.’. Posterior palate 
elongated, its hinder edge about equidistant from the last molars 
and the front of the bulle. 
Dimensions of the type :— 
Head and body 50 mm.; tail 35; hind foot 11:5; ear 9. 
Skull: greatest length 17:2; basilar length 14; zygomatic 
breadth 9; nasals, length 6°3 ; interorbital breadth 3; brain-case, - 
breadth 7:5; palate, length 9:3; palatal foramina 4-0; diastema 
5:0; length of upper molar series 3:0. 
Hab. and type as given above. 
