412 



Annals of the Soulh African Museum. 



median angle to tlie anterior point the length is 88 mm., and to the 

 posterior corner 08 mm. At the broadened end of the shaft the 

 lateral surface is concave, while below it is flat; the medial surface 

 is convex. The distal end is 70 mm. broad and 40 mm. thick. The 

 whole length of the hone is nearly 300 mm. In general aspect the bone 

 approximates closely to that of Plateosaiirns except that the anterior 

 portion of the upper articular surface is longer and narrower. 



There is also preserved the proximal end of another left ulna 

 somewhat smaller than the other. The median angle is slightly more 

 forward, the distances from it to the anterior and posterior points 

 being equal. 



Isclnntn. A right ischium lacking the posterior end and the pubic 

 articulation, and the iliac articular portion and the distal end of a 



Fig. 32. Plateosaurus cullingworthi, Htn. 

 Right ilium No. liTSO. X %. 



left ischium probably helong to this species. The whole length of 

 the bone was probably between 370 and 100 mm. The iliac articular 

 surface is 1:15 mm. long and 85 mm. broad. Its inner edge is straight, 

 its outer edge regularly convex. The groove on the hinder portion 

 of the bone is not very pronounced. It begins 100 mm. below the 

 proximal end. The broken end of the style shows a triangular cross- 

 section, the medial face being 70 mm. long and the width of the 

 bone 40 mm. The anterior angle is more acute than the lateral. 

 The distal end of the bone - as seen in the fragment of the left 

 side - is but slightly swollen. The posterior border curves slightly 

 forwards distally. At the extreme end the inner edge is 95 mm. 

 long and the bone is 63 mm. thick. 



Femur. Two right femora (Cat, Nos. 3002, 3603) have been built 

 up from fragments found weathered down the slopes. One is larger 



