NO. 5 CHECK-LIST OF FOSSIL BIRDS — WETMORE 'J'^ 



Larus pristinus Shufeldt^ 



Larus pristinus Shufeldt, Trans. Connecticut Acad. Arts Sci., vol. 19, Febru- 

 ary 191S, p. 54, pi. 14, fig. 112. 



? OHgocene (John Day) : Willow Creek, Oregon. 



Larus robustus Shufeldt 



Larus robustus Shufeldt, Amer. Nat., vol. 25, No. 297, September 1891, 

 p. 819. 



Late Pleistocene: Fossil Lake, Oregon. 



Larus elmorei Brodkorb 



Larus elmorei Brodkorb, Wilson Bull., vol. 65, No. 2, June 30, 1953, p. 94, 

 fig. I- 



Pliocene (Bone Valley formation) : Near Brewster, Polk County, 

 Florida. 



Genus GAVIOTA Miller and Sibley ^ 



Gavioia A. H. Miller and C. G. Sibley, Auk, vol. 58, No. 4, October 1941, 

 p. 563. Type, by monotypy, Gaviota niobrara Miller and Sibley. 



Gaviota niobrara Miller and Sibley 



Gaviota niobrara A. H. Miller and C. G. Sibley, Auk, vol. 58, No. 4, Octo- 

 ber 1 941, p. 563, fig. I. 



Late Upper Miocene (Barstovian, Niobrara River zone) : Niobrara 

 Game Preserve, Cherry County, Nebraska. 



Subfamily STERNLNAE: Terns 



Genus STERNA Linnaeus 



Sterna Linnaeus, Syst. Nat., ed. 10, vol. i, 1758, p. 137. Type, by tautonymy. 

 Sterna hirundo Linnaeus. 



Subgenus STERNA Linnaeus 

 Sterna forsteri Nuttall: Forster's Tern 

 Sterna forsteri Nuttall, Manual Orn. U. S. and Canada, vol. 2, 1834, p. 274. 



Modern form reported from late Pleistocene : Fossil Lake, Oregon. 



Genus CHLIDONIAS Rafinesque 



Chlidonias Rafinesque, Kentucky Gazette, n. s., vol. i. No. 8, Feb. 21, 1822, 

 p. 3, col. 5. Type, by monotypy. Sterna melanops Rafinesque = Sterna 

 surinatnensis Gmelin. 



^ Generic assignation in original description tentative. 

 ^ Allocation to subfamily provisional. 



