426 



Annals of the South African Museum. 



This is elongate with a convex anterior edge and a concave posterior 

 nltiv, while the upper edge is nearly straight and lies just below the 

 level of the zygapophysis. The prezygapophysis is short and its upper 

 surface is concave, looking inwards and upwards. 



Fig. 41. Euskelesaurus africanus, Htn. 

 Left ischium, lateral view. X |- 



The succeeding centrum had a length of 145 mm. Its posterior 

 face was 130 mm. high and 140 mm. broad. Its ventral surface 

 was very broadly rounded and without any trace of median keel. 

 The sacral rib itself is lacking, but it must have been very large 

 and strong, larger than that of the first sacral. Its base is on the 

 centrum extending over the greater part of the side of the body from 



