406 Annals of the South African Museum. 



some caudal vertebrae, the pubes, the iscliia, a femur, a tibia, a fibula 

 and some foot-bones. 



Van Hoepen has pointed out certain differences between this and 

 previously described forms. The outstanding features seem to be 

 judging from the description and figures given, the straightness of 

 the femur and the great height of the anterior end of the proximal 

 surface of the tibia. Further, the lateral edge of the pubis is much 

 straighter than in Massospondyltis harriesi or in Gryponyx africanus, 

 the only known South African forms of similar size in which it is 

 satisfactorily preserved. 



In connection with the original description and comparison of this 

 form with Massospondylus harriesi it should be noted that the tibia 

 and "femur" described by Broom, upon which van IJoepen based 

 his comparisons, are probably not bones of the type at all, as pointed 

 out in my re-description of M. harriesi in the present paper. Never- 

 theless, the tibiae of the two forms do vary in shape, the head of 

 that of D. gracilis being much more inclined to the axis of the shaft 

 than that of M. harriesi. 



Type. Partial skeleton in the Transvaal Museum. 



Locality. Naauwpoort Nek, Bethlehem, Orange Free State. 



Horizon. Red Beds. 



FAM. PLATEOSAURIDAE von HUENE. 



PLATEOSAURUS STORMBERGENSIS Broom. 



1915. Broom. Bull. Amer. Mus. Nat. Hist. XXV p. 162, figs. 48, 49. 



A species of a large size, founded on a right femur, a right first 

 metacarpal, portions of vertebrae and portions of the pubes. 



The first metacarpal is much longer than broad, 99 mm. long and 

 56 mm. wide distally. The bone is more elongate than in Masso- 

 spondylus or Gryponyx. 



The femur differs from that of P. culiingworthi in its thinner 

 proximal end, its narrower distal end, and the slightly lower position 

 of the trochanter quartus. The medial distal condyle also appears 

 to be much stouter in P. cullingicortki. It differs from Gryponyx in 

 that the trochanter quartus does not lie wholly in the upper half of 

 the shaft; but it is not so low down as in Euskelesaurus or Melanorosaurus. 



The pubis has a broad anterior plate. 



Two phalangeal bones collected by Dr. D. R. Kannemeyer at Witkop, 

 Jamestown, C.P. - - the type locality - and now in the South African 

 Museum (Cat. No. 1875) probably belong to this species. One has 

 a length of 55 mm., a proximal width of 32 mm., a proximal height 



