MERRIAM: THE FAUNA OF RANCHO LA BREA. 



259 



MEASUREMENTS OF SKULL AND DENTITION 



Length from anterior end of premaxillaries 



to posterior side of occipital condyles.... 197.5mm. 188.5 192 179.5 



Width across zygomatic arches 108 104 106.8 



Width between outer sides of tritocones 



of P* 65 57 58.9 



Least width between superior borders of 



orbits 38 35.4 29.6 



Width between postorbital processes of 



frontals 55 53.5 44 



Length, posterior side of superior canine to 



posterior side of M 2 80.5 80 72.6 



Length, anterior side of P 4 to posterior 



side of M 2 37.3 38.7 38.7 



P 3 , anteroposterior diameter 13.3 13.2 13.2 



P 4 . anteroposterior diameter 21.2 20.8 21 



P 4 , thickness across protocone 8.5 7.5 7.7 



M 1 , anteroposterior diameter measured 



along outer border 13.3 



M 1 , greatest transverse diameter 16 16 16.2 



M 2 , anteroposterior diameter measured 



along outer border 7.3 7.5 



M 2 . greatest transverse diameter 10.5 11.3 11.5 



AT 1 1 OTB C. ochro- C. lat- 

 No - 112 ' 8 pu S (c) rans(d) 



Length, anterior end of left ramus of mandible to 



middle of posterior side of condyles .. 145.5mm. 149 140 



Height of mandible below posterior side of P 2 17 



Height of mandible below posterior side of Mj 19.4 



Thickness of mandible below protoconid of M t 11.8 9.6 



Length, posterior side inferior canine to posterior 



side of M 2 85^ 85 77.5 



P 3 , anteroposterior diameter H-7 



P 3 , greatest transverse diameter 



M,, anteroposterior diameter 



ML greatest transverse diameter of trigonid .. 

 M,, anteroposterior diameter 



(a) No. 12264. 

 (6) No. 10842. 



(c) No. 651, Univ. Calif. Mus. Vert. Zool. 



(d) No. 10993. 



(e) No. 12249. 



ap approximate. 



i 



166.1 

 91 



56 

 31.9 



38.2 

 64.5 ap 

 36.5 ap 



20 

 7.8 



