Contributions to South African Vertebrate Palceontolorjy. I. 195 



113 mm. in depth and 85 mm. in width. The posterior one is 

 78 mm. in depth and 104 mm. at its greatest width. 



There are two fairly well preserved caudal vertebrte with chevrons. 

 The anterior of the two has a body which is 46 mm. wide, about 

 61 mm. deep, and 48 mm. long. There is a small rib which is not 

 anchylosed to the centrum, and arises mainly from the centrum but 

 also from the base of the arch. The second of the two vertebrae 

 appears to have the rib anchylosed or merely a transverse process. 

 The chevron of the first of the two vertebrte measures 110 mm. ; it 

 is forked at the upper end, and below this it is a uniform fairly thick 

 rod of bone. 



I do not think it is advisable to speculate on the possible nature 

 of the fragmentary skull remains. Doubtless in course of time a 

 good skull will be found. For many years there have been in the 

 South African Museum two small fragmentary bones which now 

 prove to be portions of the pelvis of ErythrosucUus. 



I am much indebted to Miss M. Wilman and Mr. A. L. du Toit 

 for assistance in the development of the bones. 



15 



