380 CHECK-LIST OF NORTH AMERICAN BIRDS. 



ORDER LONGIPENNES. 



FAMILY LARID-ffl. 



GENUS LARUS LINNAEUS. 



Larus oregonus SHUFELDT. [30.] 



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

 1892, 398, pi. xv, fig. 3. 



Pleistocene; Oregon. 



Larus robustus SHUFELDT. [29.] 



Larus robustus SHUFELDT, Journ. Acad. Nat. Sci. Phila., ser. 2, IX, 1892, 

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



Pleistocene; Oregon. 



ORDER TUBINARES. 



FAMILY PROCELLARIID-ffl. 

 GENUS PUFFINUS BRISSON. 



Puffinus conradi MARSH. [31.] 



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



Miocene; Maryland. 



ORDER STEGANOPODES. 



FAMILY SULIDJE. 

 GENUS SULA BRISSON. 



Sula loxostyla COPE. [32.] 



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

 fig. 53. 



Miocene; Maryland. 



