FOSSIL BIRDS. 403 



Genus HARGERIA Lucas. 



Hargeria Lucas, Proc. U. S. Nat. Mus., XXVI, 1903, 552, Type, by orig. 

 desig., Hesperornis gracilis Marsh. 



Hargeria gracilis (Marsh). 



Hesperornis gracilis Marsh, Amer. Journ. Sci., ser. 3, XI, 1876, 510. 

 Cretaceous (Niobrara): Western Kansas. 



Family BAPTORNITHIDAE. Baptornithes. 



Genus BAPTORNIS Marsh. 



Baptornis Marsh, Amer. Journ. Sci., ser. 3, XIV, 1877, 86. Type, by 

 monotypj', Baplortiis advenus Marsh. 



Baptornis advenus Marsh. 



Baptornis advenus Marsh, Amer. Journ. Sci., ser. 3, XIV, 1877, 86. 



Cretaceous (Niobrara): Wallace County,^ and Butte] Creek, Logan County, 

 Kansas. 



Order ICHTHYORNITHIFORMES. 



ichthyornithes. 



Family ICHTHYORNITHIDAE. Ichthyornithes. 



Genus ICHTHYORNIS Marsh. 



Ichthyornis Marsh, Amer. Journ. Sci., ser. 3, IV, Nov., 1872, 344. Type, 

 by monotypy, Ichihyornis dispar Marsh. 



Ichthyomis agilis (Marsh). 



Graculavus agilis Marsh, Amer. Journ. Sci., ser. 3, V, 1873, 230. 

 Cretaceous (Niobrara): Butte Creek, Western Kansas. 



Ichthyomis anceps (Marsh). 



Graculavus anceps Marsh, Amer. Journ. Sci., ser. 3, III, 1872, 364. 



Cretaceous (Niobrara): North Fork Smoky Hill River, east of Wallace, 

 Kansas. 



Type locality. 



