246 0. C. Marsh—Discovery of New Pterosauria. 
Pterodactylus ingens, sp. nov. 
other specimens secured are equally characteristic, and serve to 
supplement this series. 
same bones show equally marked differences. In i‘ 
talis, the articular face on the outer side extends trapsyer? 
only to the margin of the central tubercle. In the species U2 a4 
consideration, this face does not terminate until it reaches a pr 
opposite the middle of the corresponding projection, bag 
much more compressed tham in the smaller specimen. ; 
radii, also, of the two species exhibit essential differences, &P° 
cially in their proximal extremities. ms Hg 
he metacarpal bone of the wing-finger is very similar at! 
sine end to 15 ibed. It shows; 
With one series of the above specimens, a small bas ye 
found, which is probably the distal end of a metatarsal. 12 
1- 
men is nearly solid bone would be an argument for considering 
* Ornithosauria, plate vi., figures 8 and 9. 
