370 Annals of the South African Museum. 



projection the maximum width of the surface being 9 mm. 



The nature of the tibia and the ischiuin mark these remains oft" 

 from the Plateosauridne and place them among the Thecodontosau- 

 ridae. They indicate a member of this family smaller than any 

 hitherto described from South Africa and which cannot be exactly 

 identified with any European species. I propose therefore to give 

 it a new specific name Thecodontosaurus minor. 



Type. S. A. M. Cat. No. 3451. 



Loci/lift/. Pitsing, Maclear, C. P. Cutting in road to Naude's Nek. 



Horizon. Red Beds." 



There is in the Bloemfontein Museum a slab of Cave Sandstone 

 from Ladybrand, 0. F. S., which I was kindly permitted to examine. 

 The slab contains the cast of a right femur, tibia, the distal end of 

 the fibula, metatarsals I-IV, and the first three digits of the pes of 

 a Dinosaur; also part of the right ischium and two fragments of 

 jaw with teeth. The form seems to correspond pretty closely with 

 the type of Thecodontosaurus minor, and I refer it to that species. 

 It differs from Gyposaurus in being smaller and in having the meta- 

 tarsals proportionately shorter. 



One fragment of jaw is 50 mm. long and 9 mm. deep at the 

 mentum. 14 mm. from the front it carries a single tooth 6'5 mm. 

 long and 1'5 mm. in diameter. At the back of the fragment there 

 are five teeth closely set together, the five occupying a space of 

 12 mm. and gradually decreasing in size from the first backwards. 

 The largest is 6 mm. long. The teeth are widest some distance 

 above the jaw and are serrated, at least on their posterior borders, 

 in their upper halves. 3 mm. in advance of the largest is a slightly 

 more slender tooth. 



The other jaw fragment is 25 mm. long and carries 6 teeth in a 

 distance of 18 mm. The longest tooth is 7 mm. long. All the teeth 

 are serrated coarsely on their posterior and anterior borders. 



The femur as preserved is a slightly curved shaft with very 

 slightly expanded ends. The ends are, however, incomplete. The 

 greatest length in a straight line is 135 mm., and along the front 

 curve is 154 mm. The proximal width is 32 mm., the distal width 

 30 mm., and the width at the narrowest part of the shaft is 23 g 5 mm. 

 The tibia is 117 mm. long, has a proximal width of 33 mm., and 

 a distal width of about 23 mm. The following give the measurements 

 of the metatarsus and pes. 



