1916] 



Merriam: Fauna of Cedar Mountain Region 



193 



characters shown in the limb of the specimen of Procamelus gracilis 

 described by Cope from New Mexico. The metapodiaLs of the Nevada 

 specimen are about one tenth larger than in the New Mexico form, 

 and also slightly heavier. The two elements of the cannon bone are 

 completely fused, though the distal separation reaches considerably 

 higher on the shaft than in the llama. 



The epipodial segment of the limb does not differ noticeably from 

 that of the New Mexico specimen. The ulna and radius are completely 

 fused. 



Measurements 



Length, anterior side I 3 to posterior side P 1 



Length, posterior side superior canine to an- 

 terior side P 1 



Width between inner sides of third upper 



incisors 



Width between inner sides of first upper pre- 

 molars 



Length, anterior side inferior canine to pos- 

 terior side M 3 



Length, anterior side P» to posterior side P 4 

 Length, anterior side P, to posterior side M ; , 

 Length, anterior side Mj to posterior side M 3 

 Height of mandible below anterior side of M 3 

 Height of mandible below anterior side of M, 

 Anteroposterior diameter of symphysis 



Inferior canine, greatest anteroposterior diameter 

 P,, greatest anteroposterior diameter 



P 2 , greatest anteroposterior diameter 



P 3 , greatest anteroposterior diameter 



P 4 , greatest anteroposterior diameter 



M,, greatest anteroposterior diameter 



Mj, greatest anteroposterior diameter 



Mo, greatest transverse diameter of posterior 



lobe 



M 3 , greatest anteroposterior diameter 



Anterior cannon bone, greatest length 



Anterior cannon bone, greatest proximal width 

 Anterior cannon bone, greatest distal width .... 

 Anterior cannon bone, least transverse diameter 



of shaft 



Phalanx one, anterior extremity, greatest length 



B 



<u 



S 

 *s 



to CI 

 CO 



> . 



CL O 



54. 



mm. 



20.5 



12.4 



178. 

 29. 



111. 

 81.2 

 50.7 

 47.5 

 60. 



CL 

 ft 

 O 



°J 



gas 

 S 7.1 



U> te a 



44 



16 

 20 

 16 





St 



16.2 



P. gracilis 

 Cope's N( 

 Mexico 

 specimen 



40. 



245. 



222 



43. 



35.3 



51.5 



42.6 



23.5 



20.4 



75. 



65 



37 



42.2 48 



60 

 52.5 



8.2 



icilif 

 nen 







S.5 



P. gr; 

 Type 

 specii 







8. 



8 



13 



15 



11.9 



10.2 



14.7 



17.3 



14.8 



12.5 



16.4 



20.3 



16.6 





22 



29.8 



25. 





28.5 



33? 



48 



