CONTENTS. XIX 



Page 



263. Fidmai'us gladalis. Fulmar 268 



264. (Estrelata hypoleuca. Bonin-Island Shearwater 269 



265. Procellaria leaclii. Leach's Fork-tailed Petrel 270 



266. melania. Black Petrel 270 



267. fiircata. Grey Fork-tailed Petrel 271 



Order IMPENNES. 

 Suborder XXV. IMPENNES. 



Order GALLO-GRALL.E. 



Suborder XXVI. GAVI^. 



268. Alca troile arrci. Pallas's Guillemot 273 



269. carbo. Sooty Guillemot 274 



270. columha. Pigeon-Guillemot 2/5 



271. antiqua, Bering's Guillemot 276 



272. ivumizusume. Temminck's Guillemot 277 



273. marmorata. Marbled Guillemot 278 



274. brevirostris. Kittlitz's Guillemot 279 



275. Fratercula corniculata. Horn-eyed Puffin 280 



276. cirrhata. Tufted Puffin 281 



277. monocerata. Horn-billed Puffin 283 



278. psittamla. Parrot-billed Puffin 284 



279. cristatella. Crested Puffin 285 



280. pygmcea. Whiskered Puffin 286 



281. jpusilla. Least Puffin 287 



282. Stercorarius richardsoni. Eichardson's Skua 288 



283. biifoni. Buffon's Skua 289 



284. pomarinus. Pomarine Skua 289 



285. Larus glauais. Glaucous Gull 290 



286. glaucescens. Glaucous-winged Gull 290 



287. marinus scTiistisagics. Eastern Great Black-backed Gull 291 



288. cachinnans. Pallas's Herring-Gull 291 



289. leucopterus. Iceland Gull 292 



290. crassirostris. Temminck's Gull 293 



291. canus. Common Gull 293 



292. tridactylus. Kittiwake 294 



293. ridibundiis. Black-headed Gull 295 



294. Sterna dougalli. Eoseate Tern 295 



