PAN 253 



hair on this part has shpped. Top of head, whiskers, arms, neck and 

 upper part of back blackish brown, becoming more black than brown 

 on hands ; lower back and rump wood brown ; under parts and inner 

 side of thighs black; outer side of thighs very dark reddish brown; 

 feet nearly black. Ex specimen Berlin Museum. 



Measurements. Specimen a flat skin, dimensions not reliable. 

 Skull: total length, 212.1; occipito-nasal length, 142.8; intertemporal 

 width, 67.1 ; breadth of braincase, 95 : length of braincase, 111.5 ; Hen- 

 sel, 148.1 ; zygomatic width, 136; median length of nasals, 24.5; length 

 of rostrum, 80; width of rostrum at canines, 64.5; palatal length, 82.8; 

 length of upper molar series, 47.9; length of mandible, 152.8; length 

 of lower molar series, 51.3. Ex specimen Berlin Museum. 



This is a large Chimpanzee belonging to the bald-headed group, 

 with a back much lighter than the rest of the body and limbs, and 

 comes from the same district in which the large gray Gorilla ex 

 MoKBE, Cameroon, is found. The skull is short and rather heavy, 

 with the facial region about equal in length from the anterior edge of 

 the orbital ridge to the occiput. The braincase is broad and rounded, 

 and the rostrum is very broad for its length, the greatest width being 

 at the canines. The orbital ridge is straight, but with a slight depres- 

 sion behind and overhangs the orbits only slightly. The orbits are 

 round, and the narial opening is large, heart shaped and very broad 

 anteriorly. The palate is broad, equal in width throughout its length 

 and the teeth are moderately large, with the tooth rows straight. 

 Pterygoid fossa short and broad and basioccipital quite broad. Its 

 place seems to be near P. calvus. 



Pan 



Specimen from Lomie, interior of Cameroon. 



Genl. Char. Similar to P. aubryi, but much paler on lower back 

 and legs. 



Color. Top of head broccoli brown ; sides of head blackish brown ; 

 cheeks reddish brown grading into grayish brown ; back of head and 

 neck, dark brown, becoming blackish between the shoulders ; middle 

 of back to rump, and legs, pinkish buff ; arms, hands and under parts 

 brownish black, the hairs being mostly black with reddish brown ones 

 intermingled ; feet broccoli brown paler than the legs. Ex specimen 

 Berlin Museum. 



