new Mammals from Luke Chad and the Congo. 3S5 



Fur of back short (15 mm.), but soft and silky. 



General colour above a drab-grey, with only a very faint 

 buftv sulFusion on the back ; below pure white. Eye-ring 

 white; exterior margin of ears white, inner margin fringed 

 with pale buff; fringe at tip of ears black outside, pale buff 

 inside. Chin white; neck, above to half the length of the 

 ears, below to the level of the fore legs, " pinkish })uff." The 

 hairs of the back pale grey from their bases for half their 

 length, remaining half about equally black and pale buff. 



Measurements of the type (taken in the flesh) : — 



Head and body 434 mm. ; tail 115 ; hind foot 121 ; ear 97. 



Hab. Kadde, Lake Chad. 



Type. Adult male. Original number 19. Collected by 

 Mr. Boyd Alexander on 29tii December, 1904. 



The ])resent species very closely resembles L. Hawker i^ 

 Thos., from the Soudan, which, however, is smaller, darker, 

 and more sandy-coloured. 



Cephalophus rnjilatus ruhidior^ subsp. n. 



A Cephalophus related to rafilatus^ Gr., from Gambia, of 

 about tlie same size, but much redder in colour. 



Fur rather long and harsh. General colour a dark red- 

 biown, near "burnt-sienna," with a narrow median dorsal 

 ])atch much darker, with a sligiit bluish tinge. Below a paler 

 shade of the dorsal colour. 



Colour-pattern as in rujilatusj the dark dorsal area hardly 

 so sharply defined, the *' ochraceous buff" ground-colour of 

 that species replaced by " burnt-sienna," and the " smoke- 

 grey " of the nape, dorsal patcli, and feet by -'slate-grey." 

 Chin and inner side of thighs white in both forms. 



Skull entirely as in rujilatus, except that the bullse are 

 larger. 



Dimensions of type : — 



Head and body 800 mm. ; lail 115 ; hind foot Qo; ear 65. 



Skull : greatest length 155 ; basilar length 135 ; greatest 

 breadth 68 ; length of nasals 50 ; length of rostrum in front 

 of orbit 74 ; length of i'rontals 65 ; bullae 22*5. 

 " Ilab. Basin of the Upper Wello. 



Type. Young adult male. Original number 65. Collected 

 by Mr. Boyd Alexander on 30tli January, 190t!. 



A second specimen, obtained at the same time and place, 

 though a female and younger, is exactly like the type. (!on- 

 sidering the great distance separating the habitat of this form 

 from that of riifilatus on the Gambia, it is perfectly clear that 



