BIRDS OF NORTH AND MIDDLE AMERICA. 525 
toN, Ohio Agric.Rep., 1860, no. 276 (Ohio).—Brewer, Proc. Bost. Soc. N. H., 
vii, 1860, 308 (Cuba).—Covrs and Prentiss, An. Rep. Smithson. Inst. for 
1861 (1862), 418 (District of Columbia).—A.LLENn, Proc. Essex Inst., 1864, 90 
Massachusetts).—Dresser, Ibis, 1866, 44 (s. Texas).—TuRNBULL, Birds E. 
Penn. and N.J., 1869, 39.—Snow, Birds Kansas, 1873, 12. 
[Sterna] frenata Gunpuacu, Journ. ftir Orn., 1862, 93 (Cuba, crit.). 
[Sternula] frenata Bonaparte, Compt. Rend., xlii, 1856, 773.—Gunpiacu, Journ. 
fiir Orn., 1861, 346 (Cuba). 
[Sternula] australis LicutEnsrein, Nom. Av. Mus. Berol., 1854, 98, nomen nudum 
(South Africa; coll. Berlin Mus.). 
Sternula superciliaris (not Sterna superciliaris Vieillot) CABANIs, Journ. fir Orn., 
1857, 232 (Cuba).. 
Sterna superciliaris (not of Vieillot, 1819) Cours, Check List, 1878, no. 570.— 
Cory, Birds Bahama Is., 1880, and 2d ed., 1890, 218. 
Sitlerna] superciliaris Buasius, Journ. fiir Orn., 1866, 74. 
[Sterna] superciliaris Gray, Hand-list, iii, 1871, 121, no. 11066.—Couzs, Key N. 
.Am. Birds, 1872, 322, part. 
S[terna] superciliaris Netson, Bull. Essex Inst., viii, 1876, 149 (Calumet marshes, 
n. e. Illinois, June 11, 1876). 7 
Sterna minuta americana SUNDEVALL, Oefv.-k. Vet.-Akad. Férh. Stockholm, 1869, 
* 689 (St. Bartholomew, Lesser Antilles). 
STERNULA ANTILLARUM BROWNI (Mearns). 
BROWN’S LEAST TERN. 
Similar to 8. a. antillarum but under parts grayish white or dis- 
tinctly tinged with pale gray, gray of upper parts slightly deeper, and 
black of pileum extended farther down median portion of nape; bill 
frequently without blackish tip (wholly yellow); and usually with 
three outer primaries dusky. 
Aduli male.—Wing, 154-175 (166); tail, 70-80 (75.7) ; exposed cul- 
men, 27-29 (28.2); tarsus, 14-14.5 (14.3); middle toe, 12-12.5 (12.2).¢ 
Adult female.—Wing, 165-167.5 (166.2); tail, 68-82 (75); exposed 
culmen, 24-25 (24.5); tarsus, 14; middle toe, 11-12 (11.5).° 
_ Pacific coast, from Monterey Bay, California (breeding), southward 
to Pacific coast of Guatemala. 
Sterna antillarum (not Sternula antillarum Lesson, 1847) Cours, Proc. Ac. Nat. 
Sci. Phila., 1866, 100 (coast of California)—LawreEnce, Bull. U. 8S. Nat. 
Mus., no. 4, 1876, 52 (San Mateo, Oaxaca, Aug.).—Saunpers, Proc. Zool. 
Soc. Lond., 1876, 661, part; Cat. Birds Brit. Mus., xxv, 1896, 122, part 
(San Blas, Tepic, April).—Ripeway, Proc. U. 8. Nat. Mus., iii, 1880 (Cat. 
N. Am. Birds), 208, part; Nom. N. Am. Birds, 1881, no. 690, part.—Batrp, 
Brewer, and Ripeway, Water Birds N. Am., ii, 1884, 309, part. —AMERICAN 
OrnitHoLocists’ Union, Check List, 1886, and 2d ed., 1895, no. 74, part; 
3rd ed., 1910, p. 45, part.—BrewsTER, Bull. Mus. Comp. Zool., xli, no. 1, 1902, 
26 (San Jose del Cabo, Lower California, Sept. 6-12).—Satvin and Gopman, 
Biol. Centr.-Am., Aves, iii,1903, 410, part (Manzanillo, Colima; San Blas, 
Tepic; San Mateo, Gulf of Tehuantepec, Oaxaca; Pacific coast Guatemala).— 
Beck, Condor, ix, 1907, 58 (near mouth of Salinas River, Monterey Bay, 
California, breeding).—GRINNELL, Pacific Coast Avifauna, no. 11, 1915, 25 
(breeding on coast of California north to Monterey Bay). 
@ Three specimens. b Two specimens. 
