54 



middle carpal surface, which is nearly square and slightly concave. The 

 distal articular surface presents a broad, convex vertical ridge, and a 

 concavity on the radial side of that ridge ; a single flat surface for a small 

 sesamoid bone is situated below, but distinct from this part of the articu- 

 lation. 



330. The ungual phalanx of probably the second or index digit of the right 



fore-foot. 



331. The ungual phalanx of the third or middle digit of probably the right 



fore-foot. 



332. A cast in clay of the interior of the horny claw of the same phalanx. 



* 



333. The ungual phalanx of probably the fourth digit of the right fore-foot. 



334. This bone is probably the second and terminal phalanx of the fifth digit 



of the right fore-foot, It has a rough obtuse termination, without any 

 articular surface for a third or ungual phalanx, and without any modifica- 

 tion indicative of the former attachment of a claw. 



335. The head of the right femur. 



336. The shaft and distal extremity of the right femur. 



337. The left femur. 



This bone of the hind-extremity is remarkable for its massive propor- 

 tions, especially its great breadth : a slight emargination at the posterior 

 circumference of the head of the bone is the sole vestige of the insertion 

 of a ligamentum teres. The outer margin of the shaft forms a great 

 angular projection above the outer condyle ; the rotular surface is formed 

 by a continuation of the articular surface of that condyle, which is sepa- 

 rated by a rough isthmus from the inner condyle. 



338. The left tibia and fibula : they are anchylosed to each other at both ex- 



tremities. The distal articulation of the tibia is remarkable for the hemi- 

 spherical excavation near its inner side for the reception of the protuber- 

 ance of the astragalus. 



