12 RANGIFER. 



Skull: Total length, 378; Hensel, 345; zygomatic 

 width, 140; intertemporal width, 151.5; length of nasals, 119; palatal 

 length,, 230; Length of upper tooth nnv, 02.5; length of mandible, 292; 

 length of lower tooth row, 07.4; Ex type in United States National 

 Museum. 



This form would seem to be nearest to R. gr&nlandicus, but the 

 braincase is narrower although it has a similar elevation; more 

 material is neeessary before' the status of this form can be satisfactorily 

 established. 



Rangifer fortidens Hollister. 



}\<uiifcr fortidcns Hollister, Smith. Misc. Coll., LVI, No. 35, 1912, 



P- 3- 

 Type locality. Head of Moose Pass, branch of Smoky River, 



Alberta, Canada. 



Genl. Char. Size large; color dark; teeth large; antler stout, 

 greatly palmated. Skull, while generally exceeding in the size of all 

 its parts, the largest skull of any described species of Caribou; the 

 present one seems to differ in having the posterior internal cusp of 

 both the third and fourth lower premolars separated from the rest 

 of the pattern of the crown by a deep depression; the cusp-bearing 

 ridge being at right angle to the tooth's longitudinal axis. Female 

 normally, apparently without antlers. 



Color. Head blackish brown; neck grayish brown; shoulders 

 and body both above and beneath, brownish black; a small white 

 main- upon the throat; small white patch on the rump; underparts 

 black; groin white; legs and feet blackish brown, the latter with a 

 white border around hoofs: tail brownish black with- a white border. 

 Ex type in United States National Museum. 



Measurements. Total length, 2370; tail, 150; hind foot, 690. 

 Skull: Total length, 447; occipito-nasal length, 348; Hensel, 398; 

 zygomatic width, 156; intertemporal width, 125; length of nasals. 

 151; length of palate, 268; length of upper tooth row, in; length of 

 mandible, 333; length of lower tooth row, 117. Ex type in United 

 States National Museum. 



Rangifer caribou sylvestris (Richardson). 



Cervus iartiiuhts var. R. sylrcslris Rich., Fauna Boreali Amer., I, 

 1829, ]>. 250; Hollister, Smith. Misc. Coll., LVI, No. 35, 1912, 

 p. 4- 



In this paper Mr. Hollister has elevated the animal from the 

 southeastern shores of Hudson Bay, named by Richardson sylvestris 

 (I. c.) to a distinct race, giving as its characters a darker color; hairs 



