CATALOQTJE OF BHITI8H BmDS. 237 



Gavia tridaetyla, Boie, Isis, 1822, p. 563. 



Kissa Briinniohii, Leach, Steph. Oen. Zool. xiii. p. 181, pi. 21. 



Cheimonea tridaetyla, Kaup, Naturl. Syst. p. 84, 



Eissa cinerea, Eyton, Cat. Brit. B. p. 52. 



Eissa tridaetyla, MacgiU. Man. N. H. Orn. ii. p. 250 ; G. E. 



Gray, Gen. of B. iii. p. 655. 

 Laroides tridactylus, Brehm, Vog. Beutschl. p. 754. 

 Laroides rissa, Brehm, Vog. Beutschl. p. 765, t. 37. f. 3. 

 Laroides minor, Brehm, Vog. Beutschl. p. 756. 

 Kittiwake, Mont. Orn. Bict. ; Bew. Brit. B. (1804) ii. p. 229, fig.; 



Selhy, Brit. Orn. ii. p. 493. 

 Kittiwake Gull, Penn. Brit. Zool. (1812) ii. p. 186 ; Tarr. Brit. 



B. ed. 2. iii. p. 562, fig. ; id. ed. 3. iii. p. 581, fig. 

 Tarrock GuU, Mont. Orn. Bict. ; Bew. Brit. B. (1804) ii. p. 231 ; 



Penn. Brit. Zool. (1812) ii. p. 187. 



PL &d. 253, 387 ; GouU, B. of Eur. pi. 435. 



a. Great Britain. Presented by A. Cooper, Esq., E.A. 



b. Scotland. From Col. Montagu's Collection. 



c. Yarmouth. Young. 



d. Hills of Hoy, Orkney. Adult. From Mr. J. Baker's Collection. 



e. Sternum. England. Presented by John Eay, Esq. 



6. PAGOPHILA. 



Pagophila, Kaup, Naturl. Syst. p. 69 (1829). 



Gavia, Boie, Isis, 1822, p. 563. 



Cetosparactes, MacgiU. Man. N. H. Orn. ii. p. 251 (1842). 



1. Pagophixa ebtjenea. The Ivory Gull. 



Larus ebumeus, Gmel. S.N. i. p.596; Temm. Man. d'Orn. (1815) 



p. 498 ; Steph. Gen. Zool. xiii. p. 195 ; Jenyns, Man. Brit. Vert. 



An. p. 276 ; Eyton, Cat. Brit. B. p. 53 ; Keys. Sf Bl. WirUlih. 



Eur. p. 96 ; Naum. Vog. Beutschl. (1840) x. p. 341, t. 263 ; 



Schleg. Rev. Crit. des Ois. d'Eur. p. 126. 

 Larus niveus. Mart. Hist, de Spitzb. t. 4. f. A. 

 Larus candidus, Fabr. Faun. Grcenl. p. 67; Plem. Brit. An. p. 142. 

 Cetosparactes ebumeus, MacgiU. Man. N. H. Orn. ii. p. 252. 

 Pagophila ebumea, Kaup, Naturl. Syst. p. 69 ; G. B. Gray, Gen. 



o/5. iii. p. 655. 

 Gavia eburnea, Boie, Ids, 1822, p. 663 ; Brehm, Vog. Beutschl. 



p. 765. 

 Gavia nivea, Brehm, Vog. Beutschl. p. 766, t. 38. f. 1. 

 Ivory GuU, Selby, Brit. Orn. ii. p. 497; Tarr. Brit. B. ed. 2. iii. 



p. 567, fig. ; id. ed. 3. iii. p. 586, fig. 



PL Ed. 994 ; Gould, B. of Eur. pi. 436. 

 (Shetland, Firth of Clyde, and "West Coast of Ireland.) 



