ORDER LONGIPENNES. 43 



SUBGENUS ACTOCHELEDON KAUP. 



Actochelidon KAUP, Skizz. Entw.-Gesch. Eur. Thierw., 1829, 31. Type, 

 by monotypy, Sterna cantiaca GMELIN = S. sandvicensis LATHAM. 



Sterna maxima BODDAERT. Royal Tern. [65.] 



Sterna maxima BODDAERT, Table PL Enl., 1783, 58. (Cayenne.) 



RANGE. Tropical coasts north to United States. Breeds in West 

 Indies and on south Atlantic and Gulf coasts north to Virginia and west 

 to Texas; wanders casually to Massachusetts; not rare in summer 

 from San Francisco Bay south to western Mexico; winters from 

 Monterey, California, and Gulf of Mexico south to Peru and Brazil, 

 and on west coast of Africa from Gibraltar to Angola. 



Sterna elegans GAMBEL. Elegant Tern. [66.] 



Sterna elegans GAMBEL, Proc. Acad. Nat. Sci. Phila., IV, 1848 (1849), 

 129. (Mazatlan, Sinaloa, Mexico.) 



RANGE. Pacific coast from San Francisco Bay south to Chile, 

 including Gulf of California; accidental at Corpus Christi, Texas. 



Sterna sandvicensis LATHAM. 



RANGE. Coast and interior seas of Europe, both coasts of Africa, 

 and eastern American coast from North Carolina to Brazil; also India 

 and Pacific coast of Central America. 



a. [Sterna sandvicensis sandvicensis. Extralimital.] 



b. Sterna sandvicensis acuflavida CABOT. Cabot's Tern. [67.] 



Sterna acuflavida CABOT, Proc. Bost. Soc. N. H., II, 1847, 257. (Tancah, 

 Yucatan.) 



RANGE. North and South America. Breeds from North Carolina to 

 Florida, Texas, and Mexico; winters from the Bahamas, Florida, and Louisi- 

 ana to Central America (both coasts), the Greater Antilles, Colombia, and 

 Brazil; accidental in Ontario, Massachusetts, New Jersey, and the Lesser 

 Antilles. 



