1871. J 



DR. J. E. GRAY ON THE HRADYPODID.E. 



445 



back and loins whitish, browner on the rump and hind legs ; head, 

 throat, and sides of neck covered with elongated chestnut-brown hair, 

 forming a kind of hood on the sides ; forehead paler, yellowish ; 

 eye-streak dark brown ; dorsal patch large, orange-colour. Angle 

 of the lower jaw large, broad, rounded at the end, and much pro- 

 duced beyond the condyle. Female unknown. 



Fig. 5. 



Skull of Arctopithecus castaneiceps. 



Dr. Seemann brought this specimen from Nicaragua. He says it 

 was bright green when alive, as mentioned in his letter. The spe- 

 cimen does not now exhibit any of the green tint in the parts exposed 

 to the light ; but the sides of the body, covered by the arms being 

 pressed against them, retain still some remains of it. 



Hab. Nicaragua (Dr. Seemann). 



This cannot be JBradypus infuscatus of Wagler ; it does not agree 

 with the description. It is a male ('?), with long fur of a grey-brown 

 colour intermixed with white hairs. The face, forehead, cheeks and 

 chin are of a reddish brown, the under part of the body is pale brownish 

 white, the sides of the neck have a long ruff of recurved dark brown 

 hair, darker than that of the face. The shoulders and hinder part 

 of back are varied with large patches of whitish hair. The middle of 

 the back between the shoulders has a very large patch of soft yellow 

 hair, having a well-marked, narrow, black central streak, which com- 

 mences with a triangular black spot on the upper edge of the yellow 

 patch, and is continued into the white part of the fur on the loins. 



