478 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Thalasseus cantiacus BONAPARTE, Geog. and Comp. List, 1838, 61, part.—CaBANIS, 
‘Journ. fiir Orn., 1857, 234 (Cuba).—AtBrecut, Journ. fiir Orn., 1862, 207 
(Jamaica).— LAWRENCE, Bull. U. S. Nat. Mus., no. 4, 1876, 51 (San Mateo, 
Tehuantepec, Oaxaca, Aug., Feb.). 
[Sterna] cantiaca SctaTEr and Satvin, Nom. Av. Neotr., 1873, 147.—Pr.zEun, 
Orn. Bras., 1870, 461.—Covuss, Key N. Am. Birds, 1872, 320.—Cory, List 
Birds West Ind., 1885, and revised ed., 1886, 33.—SHarre, Hand-list, i, 1899, 
135, part. 
Sterna ( Thalasseus) cantiaca Covss, Birds Northwest, 1874, 673, part (monogr.). 
S[terna] (T) {halasseus] cantiaca Cours, Key N. Am. Birds, 2d ed., 1884, 761. 
Sterna acuflavida Cazor, Proc. Bost. Soc. N. H., ii, 1847, 257 (Tancah, Yucatan).— 
Cassin, in Baird, Rep. Pacific R. R. Surv., ix, 1858, 860.—Barrp, Cat. N. 
Am. Birds, 1859, no. 685; Rep. U. 8. and Mex. Bound. Surv., ii, pt. 11, 1859, 27 
(Brazos, Texas).~-Bryant, Proc. Bost. Soc. N. H., vii, 1859, 134 (Bahamas). 
[Sterna] acuflavida AuBrucut, Journ. fiir Orn., 1861, 58 (Bahamas).—LAwReEncz, 
Ann. Lyc. N. Y., ix, 1869, 210 (Celestin, Yucatan).—Gray, Hand-list, iii, 1871, 
119, no. 11048. 
Sterna cantiaca acuflavida Ripeway, Proc. U. 8. Nat. Mus., iii, Aug. 24, 1880, 208; 
Nom. N. Am. Birds, 1881, no. 683; Cat. Aquat. and Fish-eating Birds, 1883, 
33.—NeEuRLING, Bull. Nutt. Orn. Club, vii, 1882, 225 (Galveston Bay, etc., 
Texas, breeding). 
Sternasandvicensis acuflavida BarrD, BREWER, and Ripcway, Water Birds N. Am., 
ii, 1884, 288.—AmErican ORNiTHOLOGISTS’ Union, Check List, 1886, and 2d 
ed., 1895, no. 67; 3d ed., 1910, p. 43.—Cory, Auk, v, 1888, 77 (West Indian 
localities and references; descr.); Birds West Ind., 1889, 278; Cat. West Ind. 
Birds, 1892, 82 (Eleuthera, Acklin Island and Great Inagua, Bahamas; Cuba; 
Jamaica; Porto Rico; Antigua).—McIuwraitH, Birds Ontario, 1894, 52 
(Lucknow, Ontario, 3 specs., spring 1882).—Sronez, Birds E. Penn. and N. J., 
1894, 451 (Grassy Bay, New Jersey)—Bryer, Proc. Louis. Soc. Nat. for 
1897-99 (1900), 86 (coast Louisiana, resident) —Freitp, Auk, xxi, 1904, 120 
(Jamaica).—Prarson, Auk, xxv, 1908, 312 (Royal Shoal Island, North Caro- 
lina, breeding).—Pururer,. Auk, xxvii, 1910, 313 (Pimlico Sound, North 
Carolina, breeding) Wetmore, Bull. 326, U. S. Dept. Agric., 1916, 48 
(Porto Rico, rare visitant). ; 
[ Thalasseus] acuflavidus GunpLacH, Journ. fiir Orn., 1861, 346 (Cuba); 1874, 314 
(Porto Rico).—S8rauu, Ornis, vol. 3, 1887, 453 (Porto Rico). 
Thalasseus acuflavidus Brewer, Proc. Bost. Soc. N. H., vii, 1860, 308 (Cuba).— 
Gunp.iac#, Journ. fiir Orn., 1875, 390 (Cuba; habits); 1878, 163 (Porto Rico); 
Repert. Fisico-Nat. Cuba, i, 1866, 392; Orn. Cubana, 1876, 309; Anal. Soc. 
Esp. Hist. Nat., vii, 1878, 411 (Porto Rico).—Covszs, Proc. Ac. Nat. Sci. 
Phila., 1862, 540 (monogr.); 1871, 42 (Fort Macon, North Carolina); Ibis, 
1864, 389 (Chiapam, Guatemala; crit.); Proc. Essex Inst., v, 1868, 308 (New 
England); Proc. Bost. Soc. N. H., 1868, 126 (South Carolina).—Satvy, Ibis, 
1864, 381 (Saddle Cay, Brit. Honduras); 1866, 198 (Honduras). 
Th{alasseus] acuflavidus Couns, Proc. Ac. Nat. Sci. Phila., 1862, 542.—-GuUNDLACH,. 
Journ. fiir Orn., 1878, 191 (Porto Rico). 
Thalasseus acuflavida GuNDLacH, Journ. fiir Orn., 1862, 94 (Cuba). 
Thalasseus sandvicensis acuflavidus OBERHOLSER, Auk, xxxiv, April, 1917, 199. 
[Actochelidon] acuflavida Heine and Reitcuenow, Nom. Mus. Hein. Orn., 1890, 
355. 
Genus GELOCHELIDON Brehm. 
Gelochelidon Brenm, Naturg. Vog. Deutschl., 1831, 771. (Type, by monotypy 
Lachseeschwalbe Brehm=Sterna nilotica Linieeus.) 
Gelichelidon (emendation) Gray, List Birds Brit. Mus., pt. iii, 1844, 176. 
