Plate XII(XIX). Fig. 1. Coelophysis bauri COPE. Sacrum, consisting of three vertebrae and last dorsal vertebra. COPE’s original. Triassic, New Mexico. Preserved in American Museum of Natural History, New York. Nat. size, from a cast in Tübingen. a, right lateral view; b, left lateral view; c, ventral view. Fig. 2. Thecodontosaurus skirtopodus SEELEY sp. Right humerus. Original in Vienna Hofmuseum (Coll. ADLER 1886). Upper Karroo, Cape Colony, South Africa. 1/2 nat. size, from a cast in Tübingen. Fig. 3. Same. Ditto. Proximal end of a right humerus in posterior view. 1/2 nat. size (the lateral part is missing). Fig. 4. Same. Ditto. Distal end of a left humerus in anterior view. 1/2 nat. size. Fig. 5. Same. Ditto. Distal end of a left femur in posterior view. 1/2 nat. size. Fig. 6. Same. Ditto. Proximal end of a left tibia, lateral view. 1/2 nat. size. Fig. 7. Thecodontosaurus browni SEELEY sp. Left femur in posterior view. SEELEY’s original. From the Stormberg Beds of the Telle River near Aliwal North, Cape Colony, South Africa. (From casts in the British Museum and Tübingen.) 1/2 nat. size. Fig. 8. Same. Ditto. Right femur, medial view.