42 CHECK-LIST OF NORTH AMERICAN BIRDS. 



Subfamily STERNIN^. Terns. 



Genus GELOCHELIDON Brehm. 



GeUchelidon Brehm, Isis, XXIII, 1830, 994. Type, by monotypy, Lach- 

 seeschwalbe, Brehm, Gelochelidon meridionalis Brehm = Sterna nilotica 



hlNNJEVS. 



Gelochelidon nilotica (Linn^us). Gull-billed Tern. [63.] 



Sterna nilotica Linn^us, in Hasselquist, Reise Palast., 1762, 325. 

 (River Nile, near Cairo, Egypt.) 



Range. — Nearly cosmopolitan. Breeds in North America on 

 coasts of Texas, Louisiana, North Carolina, Virginia (formerly to New 

 Jersey), and in the Bahamas; wanders casually to Maine and Ohio; 

 winters in southern Mexico, southern Guatemala, and from Brazil 

 south to Patagonia and Chile. Breeds also in Europe, Asia, and 

 Australia, and winters south to northern Africa. 



Genus STERNA Linnjeus. 



Sterna Linn^us, Syst. Nat., ed. 10, I, 1758, 137. Type, by subs, desig., 

 Sterna hirundo Linn^us (Gray, 1840). 



Subgenus THALASSEUS Boie. 



Thalasseus Boie, Isis, X, 1822, 563. Type, by subs, desig.. Sterna caspia 

 Pallas (Gray, 1855). 



Sterna caspia Pallas. Caspian Tern. [64.] 



Sterna caspia Pallas, Novi Comm. Acad. Sci. Imp. Petrop., XIV, Pt. 

 i, 1770, 582, pi. xxii, fig. 2. (Caspian Sea.) 



Range. — Nearly cosmopolitan. Breeds in North America at 

 Great Slave Lake, Klamath Lake, Oregon, on islands of northern Lake 

 Michigan, on coast of southern Labrador, and also on coasts of Texas, 

 Louisiana, Mississippi, South Carolina, and (formerly) Virginia; win- 

 ters from coast of central California to Lower California and western 

 Mexico (Colima), and on south Atlantic and Gulf coasts; casual in 

 migration north to Alaska, James Bay, and Newfoundland. 



