PLATE XVI. 



All figures three-eighths natural size. 



Procainclus minimus. 

 Fig. I. Right metatarsal. Proximal extremity. 

 Fig. 2. Right metacarpal. Proximal extremity. 

 Fig. 3. Left radius and ulna. Distal extremity. 

 Fig. 4. Right humerus. Distal e.xtremity. 



Aphclops malacorhiniis. 



Left tibia and fibula. Distal portion. 



Right astragalus. 



Right humerus. Distal portion. 



Right femur. Distal extremity. 



Right radius. Posterior aspect. 



Right patella. Posterior aspect. 



