202 



LONG-WINGED SWIMMERS — LONGIPENNES. 



lit 



„ 



iii :'11 



RjBsa tridactyla. 



THE XITTIWAKE OULL. 

 re. Tridactyla 



Larus Irkhictylus, Linn. S. N. od. 10, I. 1758, 130; od. 12, I. 1766, 224. — Sw. & Uicii. )|. 



1831, 423. — NUTT. Man. IL 1834, 2it8. — Aui). Oin. IJioR. IIL 1835, 18ti, ]A. 224 ; Syiioi.. 18yi', 



32t5 ; 15. Am. VII. 1844, 140, pi. 444. — CorKs, Key, 1872, 314 ; (lurk List, 1873, no. 6.'i2. 

 Rissa tridactyla, 1?onai'. Coiiii). List, 1838, 62. — LAwn. in Haird'.s li. N. Am. 1858, 854. — IIauih, 



Cat. N. Am. 15. 185'J, no. C72. — Saundkk.s, P. Z. S. 1878, 163 (synonymy, etc.). — liiixav. 



Noni. N. Am. 15. 1881, no. 658. — Covks, 2(1 Check List, 1882, no. 782. 

 Larus {Itisaa) tridactiilii, (.'oL'Ks, 15. N. W. 1874, 644. 



Lnriis rissa, HiiiJNN. Oin. I5or. 1764, 42. — Linn. S. N. cd. 12, I. 1706, 224. 

 Larus alhus, MiiLi.iiit, Natnr.syst. 1776, 108 (hasud on HuH'on's Moueltc ciiiiln'c tachdh). 

 Larus ciiicrariiis, Faiui. Fuuna Gnunl. 1780, lol (not of Linn. 1760. — Winter jiluniage). 

 Larus na:vius, Sciiaff. Mns. Orn. 178it, 04 (not of Linn.). 

 Larus torquatus, Pali.. Zoog. l{osso-As. II. 1820, 328. 

 Larus canus, Pai.l. t. c. 330 (not of LiNN.). 

 Lf . us gavia, Pai.I.. t. c. 329. 

 Larus ritja, Gmf.i,. S. N. I. ii. 1788, 594 (misprint). 

 Rissa lirunnichii. Leach, Stephen's Gen. Zool. XI 11. i. 1826, 181, pi. 21. 

 Rissa ciiicrca, Eyton, Cat. I5r. 15. 1830, 52. 

 Laroides minor, BiiKiiM, Viig. Deutschl. 1831, 756. 

 Rissa borcalis, 15kf.iim, Nauni. 1855, 294 (not Larus horealis, Bnucii). 

 Rissa grcgaria, 15iieiim, 1. c. 



h. PoUicaris. 



Lnrus rissa. Pall. Zoog. Kosso-As. II, 1820, 321 (not of BiiiJNN.). 



Larus tridactyhis, Kittl. Isis, 1832, 1104 (not of Linn.). 



Larus (Rissa) brachyrhynehus, Buucii, J. f. O. 1853, 103, sp. 31 (nee Riciiakdson, 1831, nco 



Gould, 1843). 

 Rissa nivca, Bi-. Xaiiin. 1854, 212 (nomcii nudum ; notofGiiAY, 1845). 



Rissa Kotzcliui, Bonap. Consp. II. 1850, 220 (not of 1854 ! . — Elliot, lllustr. B. Am. pi. 54. 

 Larus tridcu'tylus, var. Kolzcbui, CoLMCs, Key, 1872, 314; Cheek List, 1873, no. 552 a; B. N. W. 



1874, 640 ; Elliott's Alaska, 1875, 199. 

 Rissa tridactyla Kotzhuci, RiixiW. Noni. N. Am. B. 1881, no. 058 a. 

 Rissa tridactyla Kotzcbuii, CouEs, 2d Cheek List, 1882, no. 783. 

 Rissa tridactyla polliairis, .Stkjn. MS. 



R. tridactyla. 



