MORPHOLOGICAL REVISION 



83 



Captorhinus isolomus {Pariotichus laticeps, vide Williston), the foot remains very 

 short. The terminal phalanges are broad and spatulate, with thin and very rugose 

 edges, indicating the attachment of a heavy nail. 



Fig. 31. — Bonet of the foot of Z>iW<c(«] «p. No. 4381 Am. Mut. X J. 

 a, calcancum; b, iMrtgilus. 



Measurements. 



No. 4684 Am. Mus. „,ni 



Length of lower jaw I95-5 



Length of scapula 308 



Breadth of scapula at cotylus 175 



Length of clavicle 209 



Length of humerus 181 



Breadth of humerus, proximal end . . . 95.5 



Breadth of humerus, distal end .... 123 



Length of radius 108 



Breadth of radius, proximal end ... 41 



Breadth of radius, distal end .... 53 



Length of ulna 157 



Length of pubis and ischium .... 203 



Length of symphysis 155 



No. 4684 Am. Mus. 

 Width across pubes at anterior end 



Length of femur 



Breadth of femur, proximal end . 

 Breadth of femur distal end 



Length of tibia 



Breadth of tibia, proximal end. 

 Breadth of tibia, distal end . 



Length of ulna 



Breadth of ulna, proximal end . 

 Breadth of ulna, distal end 

 Breadth across fore foot as mounted 

 Length of longest digit 

 Assumed length of carpus . 

 Approximate length of sixth rib . 



mm 

 152 



190 



73-5 

 107.5 



130 



82 



57 

 '35 



60 



58 

 H3 

 '30 



75 

 328 



Scapula and humerus. No. 4709 Am. Mus. : mm 



Length of scapula 353 



Width across cotylus 197 



Length of cleithrum 251 



Length of humerus 215 



Width of proximal end of humerus . 133 



Width of distal end of incomplete humerus 130 



Fragment of an enormous femur, crushed. 

 No. 4361 Am. Mus.: 

 Width across head 122.5 



Leg bones and phalanges of a large specimen. 



