xviii. Systematic Index 



PAGE 



Larusfusciis, hinn. Lesser Black-backed Gull 374 



Larus marinus, Linn. Greater Black-backed Gull 375 



Eissa tridactyla (Linn.). Kittiwake 376 



Family STERCOEARIID^. 

 Stercorarius crejndatus (Banks). Arctic or Eichardson's Skua . . . 378 



Order TUBINARES. 



Family PROCELLARIID^. 



Procellaria pelagica, Linn. Storm-Petrel 380 



Piiffinus kuhli (Boie). Mediterranean Shearwater 382 



Puffinus anglorum yelkouan (.\cerbi). Levantine Shearwater .... 383 



Order ALC^E. 



Family ALCID.^. 



Alca torda, Linn. Razorbill 385 



Fratercula arclica (Linn.). PufiBti 386 



Order PYGOPODES. 



Family COLYMBIDiE. 

 Colymbus scptentrionalis, Linn. Red-throated Diver 388 



Family PODICIPEDID^. 



Podicipes cristatus (Linn.). Great-Crested Grebe 389 



Podicijjes griscigena (Bodd.). Red-necked Grebe 391 



Podicipes auritus (Linn.). Sclavoiiian Grebe 392 



Podicipes nigricollis (C. L. Brehm). Eared Grebe 393 



Podicipes fluviatilis (Tunst.). Little Grebe 395 



