218 



longiores. Pallium coerulesccntc-pcrlaceum; re- 

 miges partim saltem nigrae. Caput collumquc 

 aestate alba , hyeme maculis fuscis. 



Majores. Piscivori. Urinatores. M. omnia. 8. 



1. Larus argentatus 9 Brunn. (glaucus, Retz, nec 



Brunn. -fuscus, Penn. nec Juct. - argenteus, Mac- 

 gill. - Laroides major, argentatus et argenteus, 

 Brehm. - Glaucus argentatus, Brueh , 1853. - La- 

 roides argentatus, Bruch, 1855.) Pl, enl. 255. - 

 Orn. Bor. p. 44. sp. 149. - Penn. Arct. Zool. II. p. 

 533? - Id. Br. Zool ii. p. 181.- Gm. Syst. Nat. i. 

 p. 600. sp. 18. -Beivick, Br. B. n. p. 214. - Macgill. 

 in Wem. Trans. v. i.p. 264. sp. 4. - Id. Ilist, Br. B. 

 v. p. 544. - ///. Br. Orn, n. 504. t. 96. juv. 



/. 96* aduit. - Yarr. H. Br. B. m.p. 588. fig. - Naum. 



DcutSChl. VOg. X. p. 379. 1 266. /1 1. ad. nupt. temp. 



2. hycm. 3. mut. 4. juv. - Gould , Eur. B. t. 454. - Beich. 



Syst. Av. t. 47. f. 312-15. ad. et juv. malae. - Bruch , 



Mon. Lar. in Cab. Journ. Orn. 18 53. p. 101. sp. 15. - 

 Ji/. I?cv. m £a&. Journ. 1855. 282. Sp. 23. ex Eur. 

 s. occ. Atlant. Medil. M. nigro. Major (Long. 

 2-pcdal.) ; albus ; pallio cacruleo-cano : alis caudam 

 valde excedentibus ; remigilvs apice albis, primis quin- 

 fjue nigro terminatis , apice , prirna et macula subapi- 

 cali , albis : rostro flavo, marginibus apiccque diapha- 

 nis; naribns lincaribus : tarso poll, 



Adult. nupt. temp. capite colloquc candidis. 



Ad. hyeme capite colloquc fusco striatis. 



Juv. fusco-cinerens , maculis griseo-ferrugineis nebxdatus. 



2. Larus apgentraeeas , Brehm. (L. argentatoides 



ex Europa, Auct, ct Musaeorum. - Laroidcs argcn- 

 tatoides? Brehm. - Laroidcs argcolaccus, Bp. an 

 Brehm?) Lehrb. Nat. Eur. Vog. u.p. 700. -Bp. Comp- 

 tes rendus Ac. Sc.Ill. 1856. p. 24. sp. 26. - Mus. Bail- 



loni Abbatisvillae , cx Gallia sept. Major (Long. 

 bipedalis); praecedentis paullo obscurior: rostro robus- 

 tiore fascia svbapicali nigricantc ; naribus linearibus : 

 tarsis S 3 /* poll. 



5. Larus argevitatoides . Richardson, nonne potlus 

 Bp. ? nec Brehm. (Larus argentatUS ex America, 



Auct. et Musaeorum. - affinis , Reinhardt ex Ilolbooi. - 

 Laroides americanus, Brehm. - Glaucus argenta- 

 toides, Bruch. - Laroides argentatoides, Bruch, 

 nec Brehm) Syn. B. Un, States in Ann. Lyc. N. II. 



