‘150 THE NATURALIST’S GUIDE. 
SULIDA, — Tue Gannets. 
256. Sula bassana, Ross. — Gannet, “ Haglett.” Com- 
mon in winter vif the coast. 
257. Sula fiber, Liny.— Booby. Given as rare in 
Essex County, some years ago, by Mr. Putnam ; no record 
of its capture recently. 
GRACULIDA, — Tue Cormorants, 
258. Graculus dilophus, Gray.— Double-crested Cor- 
morant, “Shag.”” Not uncommon off the coast in winter. 
259. Graculus carbo, Gray. — Common Cormorant, 
“Shag.” Common off the coast in autumn and winter. 
LARID#, — Tue Gutts, TERNs, ETC. 
260. Buphagus Skua, Cours. — Skua Gull. Said 
to be rare on the coast ; perhaps doubtful. 
261. Stercorarius pomarinus, Temm. — Pomarine 
Skua or Jéger. Not uncommon along the coast in autumn 
and winter. 
262. Stercorarius parasiticus, Gray.— Arctic Jager. 
Rare in winter off the coast. 
263. Stercorarius Buffonii, Cours. — Long-tailed 
Jdger, “ Marlinspike.” Not uncommon off the coast in 
winter. 
264. Larus marinus, Linn.— Great Black-backed Gull, 
“ Saddle-back,” “ Coffin-carrier.”. Common during winter. 
265. Larus glaucus, Bruny. — Glaucous Gull, “Ice 
Gull.” Rare in winter. 
266. Larus leucopterus, Faber. — White-winged Gull. 
Not common in winter. 
