394 



Annals of the South African Museum. 



The '2nd carpale is a small bone, articulating proxirnally for most 

 of its length with the 1st carpale, distally with the '2nd metacarpal, 

 and medially with the 1st metacarpal. Its dorsal surface is small, 

 its palmar face rectangular with an area of 23 mm. x 12 mm. 

 (18 13 on right). The distance between the dorsal and palmar 

 surfaces is 19 mm. (16 mm. right). 



Fig. 26. Maasospondylus harriesi, Br. 

 Left pubis (5135). 

 Ventral view. X 5- 



The 1st metacarpal has a maximum length of -42 mm., a proximal 

 width of 38 mm., and a distal width of 35 mm. The proximal end 

 is almost triangular in shape, the ulnar edge having a length of 

 25 mm. In shape it compares closely with that of Massospondylus 

 carinaius, but the distal articular surface is thicker than in the 

 larger form. Also the ulnar proximal edge of the dorsal surface is 

 pointed and not flattened as in N. carirtalus. 



The 2nd metacarpal lias only the proximal half remaining. Its 



