NATURAL HISTORY. 



XXXV 



considered this a new and undescribed species; but in deference to Mr. Temmintk, 

 who conceived that the absence of the dark markings on the wings might be occa- 

 sioned by the seventy of the chmate in which it was found, he classed it with the 

 preceding species. Its distinctive characters are now, however, sufficiently well known : 

 the specimens obtained by us during our late voyage, agreed most exactly with Cap- 

 tain Sabine's description above referred to. 



It was found breeding on the face of the same precipice with the Glaucous, but at a 

 much less height, and in greater numbers. 



It is not unfrequently met with at the Shetland Islands in the winter season, and 

 may therefore be added to our catalogue of British Birds. 



24.— LARUS EBURNEUS {Ivory Gull). 



LARUS EBURNEUS.— BicA .- Faun. Bor. Amer.— vol. ii., p. 419. 



Phipps's Foj/age, App.—p. 187. Gmel.— vol i., p. 596. 

 Lath : Itid. Oni. — toI. ii. p. 816. Temm. — vol. ii., p. 769. 

 Sab : in Trans. Linn. Soc. — vol. xii., p. 548. 

 Supp. to Parry's 1st Voyage — p. cciv. 

 LARU.S CANDIDUS.-f«6 : Faun. Grcenl.~p. 103, No. 67. 

 IVORY GULL.—Pcnn: Arct. Zoo/.— vol. ii., p. 529. 



Although extremely numerous in Baffin's Bay, and frequently met with during our 

 former voyages in the vicinity of Port Bowen, one of its breeding-places, yet few were 

 seen by us after passing to the southward of that part of Prince Regent's Inlet; 

 and only one specimen was obtained. 



This beautiful species of Gull has lately visited the western shores of Ireland. 



25.— LARUS TRIDACTYLUS {Kittiwake). 



LARUS TRIDACTYLUS.— JficA ; Faun. Bor. Amer.— vol ii., p. 423. Tcm?n.— vol li., p. 774. 

 Fub : Faun. Grant.— p. 98. Lat/i : hid. Orn.— vol ii., p. 817. 

 Sub : Supp. to Parry's 1st Voyage — p. ccv. 

 Rich : App. to Parry's 2d Voyage— p. 359. 



Ross, in App. to Parry's 3d Toy.- p. 105 ; and Polar Jouniey—p. 195. 

 KITTIWAKE.— Penn : Arct. Zool.— vol ii., p 529. Brit. Zool.—vo\. ii., p. 186. 

 Lath : Syn. — vol. vi., p. 393. 

 *e2 



