172 



convex ridge, with" a truncate discoidal articular extremity, which is nearly 

 separated from the head by a groove. Both extremities are moderately con- 

 vex. The fibula is similar to that of other species in its broad three-quarters 

 discoidal form. Both articular extremities are strongly convex, and are con- 

 tinned on the inner side on the thinned inner border. The external margin 

 is thickened and deeply concave, and without tuberosity. The tibia is a more 

 slender element, with subcylindric shaft and much expanded extremities. 

 The proximal is oval, and is continued as a narrow ridge on the inner side, 

 for contact with the corresponding ridge of the fibula. The distal extremity 

 is an equilateral spherical triangle, of which the inner angle is on a different 

 plane from the remainder. 



Pig. 7 — Sketch of the pelvic hones and adjacent vertebra! in the relative positions in which they 

 were found on removing the superincumbent rook: 1, ilia; 2, pubus ; 3, ischia; 4, femur; 5, posterior 

 lumbar vertebras. Size much reduced. 



The phalanges are slender, with cylindric shafts and expanded extremi- 

 ties, which support oval articular surfaces. Those of the two extremities 

 appear to be similar. The distal ones are extremely small and Hat, with 

 expanded extremities. 



Of doubtful bones may be mentioned two with flat expanded distal extrem- 

 ity and thick proximal, bearing an oval articular surface, with an angulate 



