UROCYON CALIFORNICUS Mearns 

 Text figure 43 



A finely preserved skull (fig. 43), no. 12263, represents a form almost 

 identical with the existing Urocyon californicus of southern California. As 



is indicated in the table of measurements 

 below, the dimensions are very close to those 

 of two Recent specimens from the San 

 Jacinto region not far distant. It is inter- 

 esting to note that this form has survived 

 to the present day with less modification 

 than the other canid types. 



Portions of the lower jaw and dentition 



o^skuii^no^Mw^x ^"iLneho f a f orm evidently representing this species 

 La Brea Beds. are a i so k nown from Rancho La Brea. 



MEASUREMENTS OF SKULL AND DENTITION 



Length of skull, anterior end of premaxillaries to 



posterior side occipital condyles 



Width across zygomatic arches 



Least width between superior borders of orbits 



Width of palate between inner borders of second 



upper molars 



Length of superior dental series from anterior side 



of canine alveolus to posterior side of M 2 



Length from anterior side of P 4 to posterior side 



of M 2 



P 4 , anteroposterior diameter along outer border .... 

 M 1 , anteroposterior diameter along outer border .... 



M 1 , greatest transverse diameter 



M 2 , anteroposterior diameter along outer border .... 

 M 2 , greatest transverse diameter 



a TJniv. Calif. Mus. Vert. Zool. 



No. 12263 No. 2324o 



Bancho La Brea Recent 



119.3mm. 

 68.2 

 23.8 



17 

 52.2 



22.3 



9.9 



7.5 

 10.6 



5.4 



7.9 



118.7 

 64.4 

 22.5 



15.8 

 52.5 



22.5 

 10 



8.4 

 11.4 



6 



8.2 



No. 2316a 

 Recent 



122.8 

 67.6 

 26 



18.4 

 53.2 

 22.3 



7.7 



10.5 



5.6 



7.4 



Date of issue, October 25, 1912. 



[262] 



