378 Annals of the South African Museum. 



of the centra 30 mm. They are stouter than, and not compressed 

 medially so much as, the dorsal vertebrae. 



There' are '20 caudal vertebrae preserved, having a total length of 

 710 mm., but the anterior caudals are not present. The anterior 

 centra of those preserved are almost as high as long, having a length 

 of 33 mm. and a height of 30 mm.; posteriorly the centra become 

 lower so that the 13th has a height of 13 mm. to a length of 30 mm. 

 Similarly the dorsal spines and the haernapophyses become shorter 

 posteriorly. The '2nd haemapophysis preserved is 90 mm. long, the 

 15th 42 mm. 



Both ilia are preserved, but incompletely. The anterior spine is 

 missing, but the posterior spine of the left bone is long. The height 

 of the upper border above the end of the postacetabular process is 

 about 80 mm. The posterior spine was probably squarely truncate. 



Both pubes are present, lacking their distal ends. The shaft was 

 38 rum. broad and thin. The proximal end is broadened and the 

 pubic foramen is large and rounded. Both ischia are present in 

 contact with each other and with the pnbes; but they lack the distal 

 ends. The proximal mesial parts of the bones are very thin. The 

 ischium passes very strongly backwards. 



Both hind legs are preserved in a ilexed condition, but the feet 

 are not in good condition. 



The femora are only seen from the anterior side. The bone is 

 slightly S-shaped, bent more proximally than distally. The right bone 

 is 270 mm. long, the left 280 mm. The shaft of the larger bone 

 is 35 mm. wide at its narrowest. The distal end of the right femur 

 is 55 mm. broad. The 4th trochanter is not visible on either bone. 



The right tibia is almost entire. It is 260 mm. long as preserved, 

 but lacks the distal end. The proximal end is 70 mm. broad, with 

 a somewhat sharp inner anterior end. The anterior face of the bone 

 is flattened just above the middle, but becomes rounded distally. 

 The shaft is 27 mm. broad at its narrowest and 25 mm. thick. 



The left fibula is 250 mm. long, slightly bent, and slender. The 

 ends are only slightly expanded. 



Of the metatarsals -4 are preserved on the left side, probably I-IV. 

 They are seen on their under surfaces. Their lengths, taken in 

 order, are 71, 102, 110 and 95 mms. 



This form is thus seen to be slightly larger than Thecodontosaurus 

 browni. 



Type. S. Af. Mus. Cat. No. 3712. 



Locality. Ladybrand, O.F.S. 



Horizon. Cave Sandstone, 



