24 TROCEEDINGS OK THE ACADEMY OF [1890. 



Infra-anal region scarcely woolly, same color as above, a conspic- 

 uous cowlick at the median line at the interfemoral membrane. 



Back composed of a narrow tract of appressed, tawny, yellow hair 

 with brown marginal lines which extend to knees. 



Prebrachium entirely naked on dorsal surface. 



One specimen only retained a few hairs on dorsal surface of the 

 ulna. 



(4) One female. Uniform dark tawny brown everywhere ex- 

 cept along the back of the body which is sulphur-yellow. 



The side of sorrel color and extending thence to the knees of the 

 same brown shade as in group No. 1. 



No " cowlick" on front of the interfemoral membrane. 



(5) Two individuals, sexes not determined. 

 Crown dark unicolored brown. 



Face, with the exception of a naked space between the eye and the 

 cheek, covered with the same brown hair. 



" Whisker" well defined but partially concealed by a prominent 

 cowlick which is formed by the whisker and the backward directed 

 hair of the side of the face. 



Inter-ramal space, or the space between the horizontal rami of the 

 mandible the same as the face and the crown. 



The fur of the front oj neck dark brown and sharply separated 

 from that of the side of the neck as in group 1 of the males ; yet the 

 base of the prebrachium is arranged as in group 1 of the females. 



The fur of the back of body dark brown with nearly black lateral 

 lines. 



(6) Nine immature examples. 



(a) Seven of these were two-thirds grown, (6) one was about half 

 grown, and (c) one with head and body measuring but six inches. 



Group (a). This exhibited the general arrangement of colors and 

 of fur as in the adults. The fur everywhere was silky. The hair 

 of the back in all examples save one was of a rich olive-brown. 

 The exception showed the sulphur-yellow of the adult male. 



In example (6) the fur was everywhere dark brown excepting at 

 the occiput Avhere it was a shade lighter. 



In example (c) the hair was of uniform light brown. The hair 

 excepting that of the side of neck was scarcely differentiated either 

 in color or length. 



