Mammals from the Upper Congo. 481 



tlie allied species. Hands and feet white. Tail almost 

 naked, finely speckled with brown as in the darker-tailed 

 individuals of Z. liildegardece. Mammae 3 — 2 = 10, as is also 

 the case in Z. hildegardece. 



Skull of about the same size as in hildegardece. Zygomata 

 rather more widely and evenly spaced, their widest point 

 opposite the posterior molars instead of further back. Bulla} 

 slightly larger. 



Incisors longer and more strongly thrown forward, the 

 general line of the exposed portion directed forwards instead 

 of being vertical. Molars decidedly larger and heavier. 



Dimensions of the type (measured in the flesh) : — 



Head and body 133 mm.; tail 88 ; hind foot 22; ear 16. 



Skull : greatest length (bone only) 30*8 ; condylo-incisive 

 length (increased by forward direction of incisors) 31'2 ; 

 zygomatic breadth 17 - 3 ; nasals 12 ; interorbital breadth 4*8 ; 

 palatilar length 15; diastema 9; palatal foramina 7'4; 

 upper molar series (crowns) 5*9. 



This rat is readily distinguishable from its East-African 

 ally, hitherto the only known species of the genus, by its 

 greyer and less drabby colour, more projecting incisors, and 

 larger molars. 



70. Thryonomys harrisoni, Thos. & Wrought. 

 1210, 1211, 1531. Poko. 



71. Atherurus centralis, Thos. 



1312, 1313, 1343, 1346, 1353, 1364, 1396, 1398, 1406, 

 1499, 1500. Poko. 



72. Manis gigantea, 111. 

 (387. Zambo. 



73. Manis macroura, Erxl. 

 (No number.) Poko. 



74. Manis tricuspis, Raf. 



Medje. 

 43, 1495, 1501. Poko. 



Ann. & May. N. Hist. Ser. 8. Vol. xvi. 34 



713, 832, 813. Medje. 



1142, 1207, 1413, 1495, 1501. Poko. 



