446 Dr. R. Broom — A Dinomur from South Africa. 



phalanx, have been discovered. The examination of these remains 

 leaves no doubt that the skeleton is that of an Opisthoccelian 

 Dinosaur of moderate size. 



The scapular fragment represented the larger portion of the lower 

 half of the bone of the right side. The posterior border is missing, 

 but as the coracoid border is preserved, as well as a portion of the 

 anterior, a very good idea can be obtained of the shape of the bone. 

 As will be seen by the figure, it resembles considerably the scapula 

 of Brontosaurus, though of very much smaller size. When complete, 

 the greatest breadth from the prescapular border to the posterior 

 part of the glenoid process would probably be about 200 mm. 



Fig. 1. — 'Leitiem.uv oi AlffoasainKs Bdiirl. x i. 



Fig. 2. — Posterior dorsal vertebra of Alc/oasaurm Benin, x l. 



Fig. 3. — Eight scapula of A/(/oasaiiriis Brriiri. x i-. 



The femur has lost the upper and lower ends, but otherwise is 

 perfect. Indications of both condyles can be seen at the lower end, 

 so that a clear idea can be obtained as to how much is missing. 

 A considerable portion of the upper end is lost, but it is probable 

 that the upper end was shaped as in Diplodociis. The fourth 

 trochanter for the femoro-caudal muscle is of much smaller size 

 than in either Brontosauriis, Diplodomis, or Morosaiinis, from which 

 we may probably infer that the tail was less powerfully developed 

 in the South African than in the American forms. When complete, 

 the femur is estimated to have been 500 mm. in length, or about 

 one-third the size of that of Diplodocus. Across the narrowest part 

 the femur measures 120 mm. 



Most of the vertebrae are too fragmentary to warrant description, 

 but from the fraanients it is mauilest that the vertebree have borne 



