neio African Muiid?e. 379 



ochraceous buflf in continuation with tlie buft'y line on the 

 sides. Hairs round base of tail with b^i^■ht buffy ends. Tail 

 practically naked^ dark brown, scarcely lighter below. 



Skull conspicuously smaller than that of (E. hypoxanthus. 

 Cranial ridges less strongly developed. Supraorbital ridges 

 more divergent posteriorly. Palatal foramina broad in front, 

 strongly narrowed behind. Palate between molars very 

 narrow. Teeth essentially as in (E. hypoxanthus. 

 Dimensions of the type (measured in flesh) : — 

 Head and body 112 mm. ; tail 157 ; hind foot 29; ear 17. 

 Skull: greatest length 30*5 ; basilar length 23*6 ; greatest 

 breadth 15"3 ; nasals 11"6 ; interorbital breadth 4*8 ; pala- 

 tilar length 13; palatal foramina 5'1; breadth of palate 

 between m^ 1*8 ; upper molar series Q-Q. 



Hub. Bibianaha, near Dunkwa, Gold Coast. Alt. 700'. 

 Type. Young adult female. B.M. no. 11. 2. 14. 9. 

 Original number 58. Collected 12th Jan., 1911, and pre- 

 sented by Dr. H. G. F. Spurrell. Two young specimens 

 also sent. 



This beautiful species presents the extreme of a type of 

 colouring found in several different parts of the world — for 

 instance, in S. America, in Peramys {sea/ops &c.) and in 

 Akodon {bacchante &c.). In Africa all the members of 

 CEnomys show something of it, the different subspecies being- 

 characterized by its degree of intensity. 



The young specimens of (E. ornatus are even more vividly 

 coloured than the adult, the ears especially standing out in 

 marked contrast to the rest of the head. 



As a species (E. ornatus is at once separable from the 

 Western (E. hypoxanthus, and in a less degree from the 

 Eastern (E. bacchante, by its much smaller skull and teeth, 

 though the hind foot is of nearly equal length to that of the 

 latter. 



The opposite extreme of the O^nomys coloration is pre- 

 sented by ihe following : — 



CEnomys bacchante mcerens, subsp. n. 



An (Enomys almost without buffy markings, the belly 

 suffused with slaty. 



Size and other essential characters as in bacchante. Colour 

 throughout much darker and le.'^s ornamented. Upper 

 surface dark, between " olive" and " bistre," the rump and 

 legs with an almost imperceptible suffusion of clay-colour. 

 Under surface lighter than the upper, the hairs dark slaty 

 proximally, dull clay-colour terminally, no lateral line of 



25* 



