LENS RER 
The digit of four phalanges (figs. III, III A) is 
interesting on account of the shape of the claw. The 
ungual phalange is laterally compressed and unsymme- 
trical, the left or less deep side being flattened or almost 
hollowed, while the other side is slightly convexe. The 
bone is not marked by any lateral groove, but its lower 
face is considerably excavated and has a sharp rim. 
The two phalanges following the ungual are short and 
broad, and much constricted round the middle. The next 
bone, which perhaps admits of more than one interpre- 
tation, is more elongated than the just mentioned, but 
not so long as the ungual. It seems to be displaced in 
the fossil, being in fact accidentally turned on its long 
axis to an extent of 45°, so that its imperfect right 
side only is seen in fig. III, its left side in fig. IT A. 
If this interpretation be correct, the bone is another 
phalange, with the saddle-shaped proximal articular face 
somewhat deeper than wide. 
The detached ungual phalange (figs. IV, IV A, 
IV B) ressembles the corresponding bone of the digit just 
described in the concavity of its lower face (fig. IV A) and 
in its lack of bilateral symmetry; but it is relatively 
large and expanded. Its articular face (fig. IV B) is 
oblique and much deeper than broad; its slightly con- 
vexe side (fig. IV) is excessively large, owing to the 
expansion of the thin, rounded, distal border; while its 
flattened left side (fig. IV A) is a comparatively small 
triangular area. 
The two ungual phalanges evidently belong to one 
and the same foot, which must have had obliquely 
curved digits. If constructed as in the Sauropodous Di- 
nosaurs, this foot would be of the left side, the large 
claw belonging to digit [° while the series of four pha- 
langes would probably represent digit III 
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