16 CHECK-LIST OF NORTH AMERICAN BIRDS. 
[B 672, C 552, R 658, C 782.| 
Groce. Dist.— Arctic regions, south in eastern North America 
in winter to the Great Lakes and the Middle States. 
40a. Rissa tridactyla pollicaris RKipew. 
Pacific Kittiwake. 
Rissa tridactyla pollicaris ‘“StnjN. MS.” Ripcw. Water B. N. 
Am. II. 1884, 202. 
[B —, C 552a, R 658a, C 783.] 
Groc. Dist.— Coasts of North Pacific and Bering Sea, south in 
winter casually to southern California. 
41. Rissa brevirostris (Brucu). 
Red-legged Kittiwake. 
Larus brevirostris Brucu, J. f. O. 1853, 103. 
Rissa brevirostris LAwK. in Bairp’s B. N. Am. 1858, 855. 
[B 674, 675, C 553, R 659, C 784.] 
Groc. Dist.— Coasts and islands of Bering Sea. 
Genus LARUS Linnaeus. 
Larus Linn. S. N. ed. 10, I. 1758, 136. Type, by elimination, 
L. canus LINN. 
42. Larus glaucus Brinn. 
Glaucous Gull. 
Larus glaucus BRUNN. Orn. Bor. 1764, 44. 
[B 656, C 543, R 660, C 768.] 
Groc. Dist.— Arctic regions, south in winter in North America to 
the Great Lakes and Long Island. 
42.1. Larus barrovianus Ripcw. 
Point Barrow Gull. 
Larus barrovianus Ripvew. Auk, III. July, 1886, 330. 
