364 0. C. Marsh—Deseription of Hesperornis regalis. 
The specimens on which this species is based were found by — 
John G. Meirs, Esq., at Hornerstown, New Jersey, in the green 
sand of the upper Cretaceous, and by him presented to the 
Museum of Yale College. 
Graculavus pumilus, sp. Nov. 
The present species, which is hardly more than one-third the — 
size of the preceding, is likewise represented by the proximal — 
end of a humerus, as well as by some other characteristic remains 
The articular head in this specimen is equally compressed, aud 
shows the same prominent apex, but is without the anconal 
deflection, which distinguishes the larger species. The lower — 
half of the head is narrower transversely, and separated from 
the internal trochanter by a wider notch. The median ridge 
moreover, on the anconal face is much more acute. 
Measurements. e 
Greatest diameter of proximal end of humerus,. ---- ---- 1836 = | 
Vertical diameter of articular head,_..-..------------- v6 a 
cransverse diameter, 2... 2... <olic si eels Jee ee ee bf ‘ 
Least diameter of shaft below proximal end,.--- ------ 31 
Greatest diameter of metacarpal, at distal end,- -------- ee 
Least diameter, - __. --~ 2 ae : 
The known remains of this species are from the same locality : 
and geological horizon as the preceding, and were also discov 
ered by John G. Meirs, Esq. Pa 
Graculavus anceps, sp. NOV. 7 
The only fossil bird remains secured during the exp - 
was the 
a 
distal extremity of a left metacarpal, which is so well p dicates : 
and so characteristic a part of the skeleton, that It ae ; 
therefore be referred provisionally to the genus a : 
green Cormorant (Graculus violaceus Gray) of the z ee oe : 
and one somewhat larger than Graculavus velox, een 
in having the articular face for the external digit brome he : 
nearly flat, the face for the small inner digit cies sae 
smaller and oval in outline, and the intervening tubercle © 
