210 0. C. Marsh on Oretaceous and Tertiary Birds. 
flat, with a slight elevation just below its central point. The 
ento-condyloid face is quite concave posteriorly, but near the 
middle of its anterior projection has a very small tubercle for 
the attachment of the lateral, articular ligament. 
The principal dimensions of this tibia are as follows :— 
Length of portion preserved, - ne LO 
Width of condyles infront,- - -~ - 72 
Depth of outer condyle, -. +. - + + 49 
Depth of inner condyle. er ee es 6.6 
would show that they belong to distinct genera; but for the 
— they may very properly be placed together : the genus” 
Telmatornis priscus Marsh, gen. et sp. nov. 
The most important of the remains on which this species 18 
founded is the lower half of a left humerus. The spect 
it represents is probably related to this group of birds. Evi- 
dence of this is seen in th | flattenin, 
tensor muscle of the hand; and in the oval impression of th 
anterior brachial muscle. The latter has, however, in this 
_- *Ilahavés, ancient, and Tptyyac, a shore bird, mentioned by Aristotle. 
Sho te 
