MAMMALS OF INK MEXICAN liOl'XDAKY. 



189 



following the curve. L80; from the burr to the fork in a straight Line, 

 1^4; longest tip. 52; shortest lip. •"><); circumference of burr, 7-*>: 

 circumference midway between burr and tines, 49; circumference of 

 tines. iT) and 35% Weight estimated at TO pounds avoirdupois. 



Cranial characU rs. -The skull of 0. crooki (fig. 18) has very nearly 

 the same conformation as that of Odocoileus columbianus. the lachrv- 



l-',,,. I'.i. — I >i a>. i: AM SHOWING POSITION "1 VOMER WITH RELATION To BASI-SI'HENOID. a, ODOCO] 



hemionus canus (Cat. No. 63144, U.S.N.M.); b, odocoileus '"i Esi (Cat. No. 59229, U.S.N.M 

 odocoileus i rooki (Type, Cat. No. 35752, U.S.N. M.). 



nial fossa being deeper than in the Virginia deer, but shallower than 

 in the mule deer. The same intermediate condition obtains with 

 respect to the vomer (fig. 19c), in the relation-hip- of the nasal and 

 premaxillary bono: and. in short, the whole animal appears to be a 

 compromise between the characteristics of the white-tailed and mule 

 deer groups. For the character- of the teeth see fiir. 20. 



< 'ranial measun mt nts of two specimens of Odocoileus crool 



Measurement. 



'I'. Kal length of skull 



Greatest breadth of skull 



Distance between orbits, measured opposite center 



Distance between pedicels of horns 



Nasal l Mines, greatest length 



Nasal bones, greatest breadth of pair 



N'asal bones, least breadth of the pair 



From tip of nasal to tip of premaxillary bone 



Total length of premaxillary, measured in situ 



Premaxillary hones, from front to premolars 



Premaxillary hones, from front to hinder margin of palate.... 



Length of upper tooth row 



Distance between first upper premolars 



h'st a nee between lasl upper molars 



Width of bony palate in from of teeth, al narrowest part 



From hinder margin of molar-, to tip of paroccipital process . . . 

 From posterior molar to anterior margin al foramen magnum. 



Length of lower jaw. measured to end of coronoid process 



From cutting edge of inner incisor to first premolar tooth . . . 



Low er jaw . from angle to end of coronoid process 



Length of lower lateral tooth row 



Lachrymal fossa, length 



No. 11144 

 maleimma- 

 ture. Amer. 



ad.(Orig. j^r^'y 



v,, 1st:: i 111 " t : - -\-. > • 



i >ng. No. 



No. 35752 



U.S. Nat. 



M us.female 



No. 1873.) 



Type. 



£00 



His 



7:; 



260 

 110 



