FOSSIL BIRDS. 361 



11. Ichthyornis anceps MARSH. 



Graculavus anceps MARSH, Am. Journ. Sci. III. 1872, 364. 

 Jchthyornis anceps MARSH, Odontornithes, 1880, 198. 



Gray shale of the Middle Cretaceous, Smoky Hill River, Western 

 Kansas. 



12. Ichthyornis lentus MARSH. 



Graculavus lenius MARSH, Am. Journ. Sci. XIV. 1877, 253. 

 Ichthyornis lentus MARSH, Odontornithes, 1880, 198. 



Middle Cretaceous beds, near Fort McKinney, Texas. 



13. Ichthyornis tener MARSH. 



Ichthyornis tener MARSH, Odontornithes, 1880, 198, pi. xxx. fig. 8. 

 Pteranodon beds, Middle Cretaceous, Wallace County, Kansas. 



14. Ichthyornis validus MARSH. 



Ichthyornis validus MARSH, Odontornithes, 1880, 198, pi. xxx. figs. 

 11-14. 



Yellow chalk of the Middle Cretaceous, near Solomon River, North- 

 western Kansas. 



15. Ichthyornis victor MARSH. 



Ichthyornis victor MARSH, Am. Journ. Sci. XI. 1876, 511. 

 Middle Cretaceous of Kansas, in various localities. 



16. Laornis edvardsianus MARSH. 



Laornis edvardsiamis MARSH, Pr. Ac. Nat. Sci. Phila. 1870, 5. 

 Middle marl bed, Upper Cretaceous, Birmingham, New Jersey. 



17. Palseotringa littoralis MARSH. 



Palaotringa littoralis MARSH, Pr. Ac. Nat. Sci. Phila. 1870, 5. 

 Greensand of the Upper Cretaceous, near Hornerstown, New Jersey. 



