224 



TEETIAET VEETEBEATA OF THE PATtM, 



ITyainodon as described by Scott*. The dimensions (in centimetres) of this specimen 

 are : — 



Length from top of head 23'5 



"Width of proximal end 7'3 



,, middle of shaft (from side to side) 2 



„ „ (from before backwards) .... 3 



„ distal end 6 app. 



„ „ articulation 4-3 



M. 8886. Plaster cast of the above specimen. Made in the British Museum. 



Text-fig. 71. 



B. 



Ai 



? r 



Eight femur of (?) Pterodon africanus : A, from front ; B, from inner side. 



g.t., greater trochanter; 7i., head ; i.t., inner tuberosity ; l.t., lesser trochanter; n.l.t, notch for 



ligamentum teres ; o.t., outer tuberosity ; t.t., third trochanter. ^ nat. size. 



C. 8897. Eight femur, somewhat crushed at the distal end (text-fig. 71). The head (/j.) is large, 

 rounded, and pedunculate ; on its posterior surface there is a deep notch or groove for 

 the round ligament {n.l.t.) . The great trochanter (g.t.) is not very large^ and does not rise 



* Scott, "The Osteology of Hymnodm," Journ. Acad. Nat. Sci. Philadelphia, vol. ix. (1S95) p. 513. 



