LOXORNIS CLIVUS 



231 



concavities, separated by a median spine. The shaft is 

 rectangular in cross section, has a shallow depression on 

 the anterior face extending from the upper end to below 

 the middle of the shaft; while on the posterior surface is a 



Fig. 155. Femur 1/2 

 natural size. 



Fig. 157- Fibula 1/2 

 natural size; outline 

 from impression in ma- 

 trix. 



Fig. 156. Tibio-tarsus 

 1/2 natural size; fib- 

 ula indicated in out- 

 line. 



Fig. 158. Tarso-met- 

 atarsus, front view 

 1/2 natural size. 



similar furrow, which is however bounded by a higher 

 ridge on the external margin. The distal articular condyles 

 are almost bilaterally symmetrical, the middle one being 

 about half again as large as the two lateral ones. Just 

 above the cleft between the condyles for digits III and 

 IV there is a moderate sized perforation. 



