OVIBOS. BISON. 57 



Measurements. Skull: total length, 430 mm.;_ occipito-nasal 

 length, 355; greatest breadth across orbits, 245; length of nasals, 

 median, 121; greatest width posteriorly, 64; anterior width (at tips), 

 13; zygomatic width, 1-68; palatal arch to end of premaxillae, 249; 

 greatest width of palatal floor between fourth premolars, 76; length 

 of horn core from edge on top of head to tip, 230; length of upper 

 tooth row, alveolar border outer side, 140; posterior width of basi- 

 occipital, 62 ; anterior width in front of bullae, 32 ; length of mandible, 

 345; length of lower tooth row, alveolar border outer side, 145. 



Genus 47. Bison. Bison, A.nierican Buffalo. 



Bison H. Smith, Griff. Anim. Kingd., v, 1827, p. 373. Type Bos 

 6t5on Linnaeus. '•, '^''•' •»•*.■•.''''"* '" 



117. Bison bison (Linnaeus). 



Bos bison Linn., Syst. Nat., i, 1758, p. 72. 



Bison americanus Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 

 II, 1901, p. 49, pi. XXIII. Zool. Ser. 



Bison bison Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, 

 SuppL, p. 486. Zool. Ser. 

 Bison. American Buffalo. 



Type locality. Texas. 



Geogr. Distr. Practically extinct in the wild state; a few survive 

 in the National Park, and some are said to be in the Pan Handle 

 of Texas. 



a. Bison bison athnhascce Rhoads. 



'Bison bison athabascce Rhoads, Proc. Acad. Nat. Scien. Phil., 

 1897, p. 498. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 

 II, 1901, Suppl., p. 486. Zool. Ser. 

 Bison americanus athabascce Elliot, Syn. N. Am. Mamm., F. C. M. 

 Pub., II, 1901, p. 49. Zool. Ser. 

 Wood Bison. 



Type locality. Fifty miles southwest of Fort Resolution, Great 

 Slave Lake, Mackenzie, Canada. 



Geogr. Distr. "Wooded uplands of Northwest Territories. For- 

 merly from the east slope of the Rocky Mountains to the 95th merid- 

 ian, and from latitude 63° to latitude 55°; probably south along 

 the Rockv Mountains to the United States." 



