ORDER LONGIPENNES. 15 
38. Stercorarius longicaudus VIEILL. 
Long-tailed Jaeger. 
Stercorarius longicaudus VinitL. Nouv. Dict. XXXII. 1819, 157. 
[B 655, C 542, R 699, C 767.] 
Groc. Dist.— Northern part of northern hemisphere, breeding 
in high northern districts ; south in winter to the Gulf of Mexico. 
Famity LARIDA. Guttis anp TERNS. 
SuBFAMILY LARINZA. Guw_Ls. 
Genus GAVIA Bole. 
Gavia Boir, Isis, 1822, 563. Type, Larus eburneus PHIPPS = 
Larus albus GUNN. 
39. Gavia alba (Gunvn.). 
Ivory Gull. 
Larus albus GuNN. in LEEm’s Beskr. Finm. Lapp. 1767, 285. 
Gavia alba STEJN. Pr. U.S. Nat. Mus. V. 1882, 39. 
[B 676, 677, C 550, R 657, C 785.] 
Geroc. Dist.— Arctic Seas, south in winter on the Atlantic coast 
of North America to Labrador artd Newfoundland, casually to New 
Brunswick, and on the Pacific side to Bering Sea. 
Genus RISSA STEPHENS. 
Rissa STEPHENS, Gen. Zool. XIII. 1825, 180. Type, Larus 
tridactylus LINN. 
40. Rissa tridactyla (Linv.). 
Kittiwake. 
Larus tridactylus LINN. S. N. ed. to, I. 1758, 136. 
Rissa tridactyla BONAP. Comp. List, 1838, 62. 
