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 . — Bones of the foot of Diadeclts sp. No. 4381 Am. Mus. X J. 

 a, calcaneum; b, astragalus. 



Measurements. 



No. 4684 Am. Mus. mrn 



Length oflower jaw r 95-5 



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 



Vertebra;, No. 4684 Am. Mus. 



Dorsals. 



3 



5 



9 



'3 

 18 



21 



Height. 



97 

 98 

 105 

 119 

 148 

 159 



I 



Breadth across j Anteroposterior 

 transverse j distance across 

 processes. zygapophyses. 



92.5 



92 

 I06 

 119 



83 



68 



42 

 46 

 54 

 54 

 63 

 59-5 



Caudals. 



_. . . Anteroposterior 



_ T . , , Breadth at ,. . r 

 Height. 1. t -l ' distance across 



base or ribs. , 



zygapophyses. 



I 



6 

 10 

 15 

 25 



129 

 125 



85 



62 



3° 



67 

 58 

 35 

 23 

 13 



49 

 42 

 42 

 3° 

 25 



152 



190 



73-5 

 107.5 

 130 



82 



57 

 135 



60 



58 



143 



130 



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, 



No. 4381 Am. Mus.: mm 



Length of tibia 133.5 



Length of largest ungual phalanx . . 29 



Width of same 32.5 



Another giant femur, crushed, No. 4379 Am. 

 Mus.: 



Width of distal end 138.5 



Length 261 



