1902.| Allen, A New Caribou from the Cassiar Mits., B.C. 153 CoMPARATIVE MEASUREMENTS OF SKULLS oF Rangifer osbornt AND R. montanus. R. osborni: | R. montanus. |: Gasae eens = | SaaS RT ee oon 15714| 15715] 17971| 17972) 17974) 17973 Stade gadealicradamlecademle cadens morades Basal length Tip of premaxilla to tip of nasals Tip of premaxilla to al- veolus of first premolar. Length of nasals Greatest orbital breadth... Breadth (above m2)..... Zygomatic breadth Mastoid breadth Palatal-breadth atm ... Depth of skull between antlersige. eta et ania Length of upper tooth- row (crown surface)... Diastema (canine to pm?) Distance between antlers just below burr Distance between outer edge of antlers just be- Length of mandible, inci- sive border to angle.... Angle to condyle “—_ ** tip of coronoid. . Depth of mandible at ms. Length of lower toothrow. IDE HEME), 6 boa ob bho oe eae Antlers, length of main ISEBHE ob auns coc distance apart at point of palma- tion distance between points at tip of main beam.... 355 Iot II5 107 155 108 This form of Caribou differs markedly in color from the Woodland Caribou in being very much darker throughout, in