Plate 5. Diplocaulus. Limb bones. 



Fig. 1. Humerus, dorsal view; la, the same, ventral view; 16, proxi- 

 mal articulate; Id, distal articulate. 



Figs. 2 to 6, epipodials; 2a to 6a, articulates. 



Fig. 7. Metapodials; 8, 8a, epipodial; 9, femur, external view; 9a, pos- 

 terior view; 96, proximal articulate; 9c, distal articulate. 



