Fauna and Stratigraphy of the Stormberg Scries. 417 



GRYPONYX AFRICANUS, Broom. 



Text figs. 36-38. 

 1911. Broom. Ann. S. Afric. Mus. VII, 4, p. 294. Pis. X1V-XV. 



In addition to the original description the following points may 

 be noted. 



Vertebrae. Two posterior dorsal vertebrae have been developed. 

 The centra are each 75 mm. long; the anterior articular surface of 

 the lirst is 55 mm. broad, the posterior surface of the second 



A B 



Fig. 37. Gryponyx africanus, Br. 



Left femur of type. 

 A. Anterior view. B. Medial view. 



63 HUH. broad and 85 mm. high. The middle portion of the cen- 

 trum has a minimum width of 28 mm. The maximum height of 

 the vertebra was 180 mm. The dorsal spine is thin, long and 

 fairly low. A figure is given herewith. 



Pelvis. The pelvis of the type is crushed, and has been restored 

 and figured by Dr. Broom. 



The two jtubes form a complete symphysis. They are seen in 

 the type from the ventral side. The greatest length of the left 

 pubis is 440 mm. The pubic neck has a minimum width of 

 58 mm., and is situated at a distance of 95 mm. from the articular 

 surface for the ilium. Its maximum thickness is not more than 

 20 mm. At the articulation with the ilium the pubis is 65 mm. 



