450 CHECK- LIST OF NORTH AMERICAN BIRDS. 



Order DIATRYMIFORMES. Diatrymas. 



Family DIATRYMIDAE. Diatrymas. 



Genus BARORNIS Marsh. 



Barornis Marsh, Amer. Journ. Sci., ser. 3, XLVIII, 1894, 344. Type, by 

 monotypy, Barornis regens Marsh. 



Barornis regens Marsh. ^ 



Barornis regens Marsh, Amer. Journ. Sci., ser. 3, XLVIII, 1894, 344, text 

 fig- 

 Eocene: "Squankum," New Jersey. 



Genus DIATRYMA Cope. 2 



Diatnjma Cope, Proc. Acad. Nat. Sci. Phila., [XXVIII] 1876, sig. 2, 

 April 18, 11. Type, by monotypy, Diatnjma gigantea Cope. 



Diatryma ajax Shifeldt. 



Diatryma ajax Shufeldt, Bull. Amer. Mus. Nat. Hist., XXXII, Art. 16, 

 Aug. 4, 1913, 287, pis. LII, figs. 4-5, LIII, figs. 8-10, LIV, figs. 13-14. 



Lower Eocene (basal Wasatch): 3 miles southeast of mouth of Pat O'Hara 

 Creek, Clark's Fork Basin, Wyoming. 



Diatryma giganteum Cope. 



Diatryma gigantea Cope, Proc. Acad. Nat. Sci. Phila., [XXVIII] 1876, sig. 

 2, AprQ 18, 11. 



Lower Eocene: (Lower Wasatch) New Me.xico. 



Diatryma steini Matthew and Granger. 



Diatryma steini Matthew and Granger, Bull. Amer. Mus. Nat. Hist., 

 XXXVII, Art. 11, May 28, 1917, 322, pis. 20-33. 



Lower Eocene (Gray Bull Horizon, Lower Wasatch): South Elk Creek, 

 Bighorn Basin, Wyoming. 



1 Considered by Shufeldt, Trans. Conn. Acad. Arts Sci., XIX, Feb., 1915, 

 37-38, a species of Diatryma. 



2 Diatnjma (?) fdifera Cockerell, Amer. Mus. Novitates, No. 62, March 16, 

 1923, 1, described from the Green River Eocene of Colorado is not avian. 

 See Wetmore, Auk, 1930, 579-580. 



