173 



Longest diameter of supra-spinal aperture formed by 1 



the junction of the acromion and coracoid processes J 



Shortest diameter of ditto 



Length of superior costa ...... 



inferior costa ...... 



Breadth of supi'a- spinal fossa . . . . . 



infra-spinal fossa 



Clavicle. 

 Length ......... 



Smallest circumference ...... 



Humerus. 

 Length ......... 



Circumference at the centre of shaft 



upper end 



Transverse diameter of the distal end 



Ulna. 



Length 



Length of olecranon ...... 



Circumference of upper end 



lower end ..... 



Radius. 

 Length ........ 



Smallest circumference ...... 



Greatest circumference at lower end ... 

 Least diameter of upper articular surface 

 Circumference of the upper end .... 



Mamis. 



Length of the fore-foot 



Breadth of ditto 



Length of the middle metacarpal bone 

 Circumference of ditto at its proximal extremity 



distal extremity . 

 Length of the fourth metacarpal bone . 

 Circumference of ditto at its proximal extremity 



distal extremity 

 Length of ungual phalanx of middle digit 

 Vertical diameter of ditto near the middle . 

 Transverse diameter of ditto at the same part 

 Length of the bony core of the claw 



Mylodon. 



ft, in. lines. 



5 



3 



1 2 

 1 

 070 

 6 



8 2 



3 



1 3 6 



11 2 



1 1 7 

 074 



12 6 



4 6 



11 



8 



11 



7 6 



12 



1 10 



6 





 4 

 9 

 3 

 9 

 3 

 1 

 

 3 

 

 1 10 

 4 10 



Mega- 

 therium. 



1 



2 







8 







3 







8 







6 







4 







6 







6 







5 







2 







1 







4 



ft. in. lines, 



6 6 



4 6 

 2 5 



1 6 

 10 6 



5 



1 3 

 7 6 



2 3 



1 3 



2 1 6 



2 2 



9 



1 8 

 3 3 

 10 



Megalonyx. 



ft. in. Unes. 



2 7 



3 



1 2 



6 



7 



6 



12 



7 



11 







10 



6 



10 



4 



12 



10 



10 



6 



6 







3 







10 







1 6 



8 



1 3 



5 6 



1 8 

 5 8 



10 

 070 



1 5 

 5 8 

 OHO 

 2 

 7 6 



3 10 



7 1 

 070 



073 



3 8 

 16 

 6 6 



