Fauna and Stratigraphy of the Stormberg Series. 371 



Huene has also described some vertebrae, humeri, a femur, and a 

 tibia from "the Karroo formation" - now in the Vienna Museum - 

 as members of this species. 



Discussing the generic position of the form von Huene says "The 

 form of the tibia is entirely characteristic of Thecodontosaurus; the 

 long, laterally-directed projection at the proximal end, the broad 

 lateral condyle at the proximal end, and the nature of the expan- 

 sion of the proximal and distal ends are elsewhere only seen in 

 Thecodontosaurus and Anchisaurus. The astragalus, also, corresponds 

 closely with that of 'Thecodontosaurus from Bristol. I can see no 

 ground for separating Hortalotarsus from Thecodontosaurus." 



While collecting at Foutanie, Fouriesburg, . 0. F. S., Mr. A. R. 



Fig. H.i. Thecodontosaurus skirtopodus (Seeley). 

 Right ulna. X . 



Walker obtained some bones from the top of the Red Beds. They 

 comprise (S. A. M., Cat. No. 3429) some vertebrae, a scapula, the 

 distal end of a humerus, an ulna, an ilium, part of an ischium, a 

 femur and a tibia which belong to an animal somewhat smaller 

 than, but closely comparable with, the type of T. skirtopodus. The 

 bones are in good condition and worthy of a short description, 

 especially as some portions of the skeleton were hitherto unknown. 

 Scapula. The right scapula is almost complete. Its length as 

 preserved is 125 mm., but it lacks the distal end. It is small and 

 slender, the minimum width across the bone being 21 mm. Distally 

 the shaft expands very slightly, but proximally it has a greatest 

 width of 47 mm. The proximal portion is very like that of Massos- 

 pondylus carinatus. On the lateral face the supracoracoidal surface 

 is concave. The whole bone is curved in its length, convex out- 



24 



