ORDER LONGIPENNES. 43 
Suscenus ACTOCHELIDON Kave. 
Actochelidon Kaur, Skizz. Entw.-Gesch. Eur. Thierw., 1829, 31. Type, 
by monotypy, Sterna cantiaca GMELIN = S. sandvicensis LATHAM. 
Sterna maxima BopparrtT. Royal Tern. [65.] 
Sterna maxima BoppakErt, Table Pl. Enl., 1783, 58. (Cayenne.) 
Rance.— 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 élegans GAMBEL. Elegant Tern. [66.] 
Sterna elegans GAMBEL, Proc. Acad. Nat. Sci. Phila., IV, 1848 (1849), 
129. (Mazatlan, Sinaloa, Mexico.) 
RaNnGE.— Pacific coast from San Francisco Bay south to Chile, 
including Gulf of California; accidental at Corpus Christi, Texas. 
Sterna sandvicénsis LATHAM. 
RaNnGE.— 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 Caspor. Cabot’s Tern. [67.] 
Sterna acuflavida Casot, Proc. Bost. Soc. N. H., II, 1847, 257. (Tancah, 
Yucatan.) 
Rance.— 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. 
