250 



1097. The outer metacarpal bone of the two fully developed toes of the right 



fore-foot of the Anoplotherium commune; it corresponds with the fourth 

 metacarpal of the pentadactyle foot ; there is a small articular surface 

 which, with an adjacent one on the os unciforme, afforded attachment to 

 the rudiment of the fifth metacarpal. 



1098. The proximal phalanx of the inner toe of the same fore-foot of the 

 Anoplotherium commune. 



1099. The middle phalanx of the inner toe of the same fore-foot of the 



Anoplotherium commune. 



1100. The distal or ungual phalanx of the inner toe of the same fore-foot of 

 the Anoplotherium commune. 



1101. The proximal phalanx of the outer toe of the same fore-foot of the 

 Anoplotherium commune. 



1102. The middle phalanx of the outer toe of the same fore-foot of the 

 Anoplotherium commune. 



] 103. The distal or ungual phalanx of the outer toe of the same fore-foot of 

 the Anoplotherium commune. 



The originals of the foregoing casts of the bones of the fore-foot were 

 discovered in the Eocene deposits of gypsum at Montmartre. 



The first of these bones which Cuvier obtained were the semilunare, 

 the unciforme and the os magnum ; and the result of his comparisons 

 was that they were intermediate in their forms between the Hog and 

 some other Pachyderms on the one hand and the Ruminants on the 

 other. Subsequent discoveries confirmed the earlier inductions, and 

 demonstrated that there had been entombed in the gypsum quarries a 

 Pachyderm with fore-feet having but two completely developed toes, the 

 medius and the annulare, of which the metacarpal bones continued 

 distinct throughout life ; the other toes being represented by very 

 simple rudiments : this peculiarly constructed fore-foot was finally 

 demonstrated to belong to the same animal as the skull with small 



