124 Bulletin American Museum of Natural History. [Vol. XVI, 



whole series, other males of corresponding age having the dark parts of 

 the body, limbs and head much paler, nearly as in the above described 

 female. The series of four adult males ranges in the color of the 

 dark parts from clove brown to broccoli brown, the variation in color 

 being doubtless due to the seasonal condition of the pelage, the lighter 

 coat being probably a more advanced stage toward the full winter 

 coat. 



Measurements. The collector's measurements given below, taken 

 from the freshly killed specimens before skinning, indicate the very 

 small size of this animal as compared with any of the woodland 



species, and the great 

 length of the tail verte- 

 brae, which averages 192 

 mm. in the five males as 

 against 152 in a corre- 

 sponding series of males 

 of R. montanus, notwith- 

 standing the fact that 

 the latter is a very much 

 larger animal. The 

 height of the males at the 

 shoulders is also some 

 200 mm. less in R. granti 

 than in R. montanus. 



Skull. In size the 

 skull most resembles that 

 of R. grcenlandicus (R. 

 arcticus is not available 

 for comparison) , but the 

 antlers, while light and 

 slender, are about one 

 third shorter in the 

 length of the main beam, 

 and the brow antlers 

 and principal branches 

 are proportionately re- 

 duced. The skull is 

 rather smaller than in 

 R. grcenlandicus, with 

 relatively much longer 

 nasals, which average 

 122 mm. in a series of 

 four males as against 112 



mm. in two males of R. grcenlandicus, the basal length of the 

 skull averaging the same in both species. The skull differs from 



Fig. 5. Rangifer granti, ? ad. Same specimen as Fig. 4. 

 \ nat. size. 



