299 



I think, accounts for the error made by Dr. Franquct, that he 

 had seen a different species. I have killed an old chimpanzee at 

 Cape Lopez (of which I have the specimen) whose face was 

 entirely black, and whose head was covered with hair ; and I 

 saw another one that had been killed by the natives in the 

 Camma country presenting exactly the same appearance as the 

 first ; consequently I am led to the conclusion that the third 

 species of Dr. Franquet is not the 7^. calvus, for he would not 

 have forgotten to mention, and certainly would have observed, 

 the entire baldness of the head, which is the most strikins: feature 

 of the animal. The 7\ calviis also has large ears, like those of 

 the T. niger. The T. calims I have thus far found in the inte- 

 rior, south of Cape Lopez, but I suppose it has a wider geograph- 

 ical range. 



2. Tragelapiius albo-virgatus, (Du Chaillu,) sp. nov. 



This large bovine antelope is found in the Ashankolo Mountains, 

 CO miles south of the equator and 140 miles from the coast; it 

 probably belongs to the genus Tragelaphus ; it is called " Bongo " 

 by the natives. 



Description of a male, the smallest seen in a herd of eight. 

 General color bright orange rufous ; chestnut patch between 

 horns and eyes, extending two inches below the eyes, with 

 rounded edge in front. Below this a white crescent an inch 

 wide, divided in the middle by a dark brown stripe wdiich ex- 

 tends in the median line to the muffle. Sides of the face below,, 

 light w^ood-brown, shading into yellowish rufous on the cheeks to 

 just beyond the eyes. On the cheeks, below the eyes, a white 

 patch divided into two lobes, of which the upper is about 2^ 

 inches long, and the lower 1^- inches. Muffle black and bare, 

 with a few long bristles on each side of the nostrils ; the upper 

 lip white and hairy, except a narrow space on the median line ; 

 tear-bag not distinct, but in its place a bare space, — in this respect 

 diverging from the typical species of Tragelaphus, and coming 

 near the genus Oreas. Under lip white; throat with longer, 

 shining black hair, for about a foot in length and 3^ inches 

 in width in the middle, diminishing in a rounded point above and 

 below ; the white spots on the cheeks extending to the edge of 

 this gular spot. Ears ox-like, rufous, and lined on the inside 



