380 CHECK-LIST OF NORTH AMERICAN BIRDS. 



Ordeb LONGIPENNES. 



Family LARID.S. 

 Genus LARTTS Linnaeus. 



L§rus oreg6nus Shufeldt. [30.] 



Larus oregonus Shtjfbldt, Journ. Acad. Nat. Sci. Phila., ser. 2, IX, 

 1892, 398, pi. XV, fig. 3. 



Pleistocene; Oregon. 



Larus robustus Shufeldt. [29.] 



Lotus robustus Shufeldt, Journ. Acad. Nat. Sci. Phila., ser. 2, IX, 1892, 

 398, pi. XV, figs. 1-2. 



Pleistocene; Oregon. 



Order TUBINARES. 



Family PROCELLARIIDffi. 



Genus PUFFINUS Brisson. 



PuflBnus c6nradi Marsh. [31.] 



Puffinus conradi Maksh, Amer. Journ. Sci., ser. 2, XLIX, 1870, 212. 



Miocene; Maryland. 



Order STEGANOPODES. 



Family SULID.£. 

 Genus SULA Brisson. 



Stila loxostyla Cope. [32.] 



Sula loxostyla Cope, Trans. Amer. Philos. Soc, N. S., XIV, 1870, 236, 

 fig. 53. 



Miocene; Maryland. 



