CEPIIALOPHINiE 



65 



specimens grow to 6^ inches in length, rehxtively large, 

 divergent, slender, evenly tapering, and somewhat roughened 

 at base. Skull relatively slight, slender, and long, with 

 median palatal notch in advance of lateral ones ; basal length 

 lOj, maximum width 4|-, interval between muzzle and orbit 

 6^ inches. The range extends from the west coast through the 

 forest-zone to N. E. Ehodesia. The characters given by their 

 describers as respectively distinctive of the N. E. Ehodesian 



Pig. 10.— Front and Side Views of Skull and Hobns op Yellow- 

 backed Duiker {Gejphalojphus sylvicuUrix) . 



C. coxi and the Ituri C. itvriensis do not appear to be even 

 of racial value. If ituriensis were a distinct race it is quite 

 probable that it would be inseparable from tJwmasi. 

 78 7. 16. 3. Skin, mounted. Fanti. Also skull. 



Purchased, 1878. 



64. 12. 1. 12. Skull, with horns, and skin. Gabun; 

 collected by Monsieur P. du Chaillu. Type of 0. loncjiceps. 



Purchased, 1864. 



71. 5. 27. 1. Skull, with horns, and skin. Same locality 



and collector. Type of C. melcmoprymnus. Purchased, 1871. 



55. 12. 26. 161. Skull, with horns, and skin. Sierra 



Leone. Described and skull figured by Gray, Proc. Zool. 



Soc, 1871, p. 594. Purchased, 1855. 



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