628 Troxell — Vertebrate Fossils of Rock Creek, Texas. 



The third group, a single tooth, M 1 , gives a ratio of 86 per 

 cent. This tooth, in addition to its small size, is duplicated in 

 group II, thus eliminating the possibility of its belonging with 

 the type of C. texanus. 



Fig. 19. 



Fig. 20. 



Fig. 19. Canis ? priscolatrans, first upper molar. One-third nat. size. 

 Fig. 20. Cants texanus, n. sp., paratype, first upper molar. One-third 

 nat. size. 



The last group consists of but two bones which belonged to 

 a small animal 65 per cent of the size of the recent dog. 



Fig. 22. 



Fig. 21, 



Fig. 21. Canis temerarius, first phalanx. One-half nat. size. 

 Fig. 22. Canis temerarius, tibia. One-half nat. size. 







Index list. 







Group 



I 



No. 10079 











Field number 



Ratio 



Figure 



Phalanx . 





145 



163 



16 



Tibia.. -. 





41 



148 



17 



Rib 





. 354 



143 





Premolar 



~P 3 ~~~~ 



age _ . . 



12 



150 





Aver 



151 





