472 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
681.—Nzxeune, Bull. Nutt. Orn. Club, vii, 1882, 225 (Galveston Bay, etc., 
breeding).—Zetep6n, Cat. Aves de Costa Rica, 1882, 36.—DaLeLzisH, Auk, 
i, 1884, 97 (Tangier, Morocco, Dec. 10, 1883; flock).—WELLs, List Birds 
Grenada, 1886, 11. ‘ 
[Sterna] regia Gray, Hand-list, iii, 1871, 120, no. 11055.—Covgs, Key N. Am. 
Birds, 1872, 319. 
S[terna] regia Rweway, Ann. Lyc. N. Y., x, 1874, 391 (Illinois).—Netson, Bull. 
Essex Inst., viii, 1876, 147 (Milwaukee, Wisconsin, in summer). 
Thalasseus regius Nuwron (A. and E.), Ibis, 1859, 371 (St. Croix).—Covzs, 
Proc. Ac. Nat. Sci. Phila., 1862, 538 (monogr.); 1871, 42 (Fort Macon, North 
Carolina; habits, etc.); Ibis, 1864, 388 (Chiapam, Guatemala; Brit. Hon- 
duras); Proc. Bost. Soc. N. H., xii, 1868, 126 (South Carolina).—Satvin, 
Ibis, 1864, 385 (Long Cay, Brit. Honduras); 1866, 199 (Guatemala).—Law- 
RENCE, Ann. Lyc. N. Y., viii, 1865, 103 (Sombrero, Lesser Antilles; habits); 
ix, 1869, 210 (Yucatan).—Gunpiacu, Repert. Fisico-Nat. Cuba, 1866, 392 
(Cuba); Journ. fiir Orn., 1874, 314 (Porto Rico); 1875, 388 (Cuba; habits); 
1878, 162, 191 (Porto Rico); Orn. Cubana, 1876, 309; Anal. Soc. Esp. Hist. 
Nat., vii, 1878, 410 (Porto Rico).—Bzxpine, Proc. U. 8. Nat. Mus., v, 1883, 
545 (Cape San Lucas district, Lower California), 549 (San Jose del Cabo.— 
Sraut, Ornis, vol. 3, 1887, 453 (Porto Rico). : 
[Thalasseus] regius Lawrence, Ann. Lyc. N. Y., viii, 1867, 299 (vicinity New 
York City). 
T[hallaseus] regius GamBet, Journ. Ac. Nat. Sci. Phila., 2d ser., i, 1849, 228. 
Sterna ( Thalasseus) regia Couss, Birds Northwest, 1874, 669. 
[Phetusa] regia Bonaparte, Compt. Rend., xlii, 1856, 772. 
[Sylochelidon] regia GunpLacu, Journ. fiir Orn., 1861, 348 (Cuba). 
Sylochelidon regia Gunpuacs, Journ. fir Orn., 1871, 294 (Cuba). 
Sterna bergii (not of Lichtenstein) Hartzaus, Orn. West-Afr., 1857, 254 (Gam- 
bia)._Suettey and Bucx.ey, Ibis, 1872, 293 (Accra and Cape Coast Castle, 
w. Africa).—Inpy, Orn. Straits Gibr., 1875, 209. 
Sterna elegans (not of Gambel) Ltoraup, Ois. Trinidad, 1866, 542. 
THALASSEUS ELEGANS (Gambel). 
ELEGANT TERN. 
Adulis in breeding (%) plumage (sexes alike).—Pileum, including 
occipital crest, nape, and upper half of lores, uniform deep black; 
rest of head and neck, entire under parts, lower rump, upper tail- 
coverts, and tail immaculate pure white, the under parts more or less 
deeply suffused with eosine pink; back, scapulars, upper rump, and 
wings plain pallid neutral gray; inner webs of primaries with a sharply 
defined stripe of dark gray next to shaft, this color extending across 
tips and for a short distance along edge; bill orange or reddish orange; 
iris dark brown; legs and feet black. 
Adulis in post-nuptial (?) plumage.—Similar to the above, but 
forehead and lores white; crown white, spotted with dusky, only the 
i crest, nape, and sides of crown to and in front of eye, uniform 
black. 
Young.—Pileum dull brownish black, nearly uniform on occiput 
(where the feathers are not elongated nor lanceolate, but short and 
blended), the whole crown streaked with white; forehead and lores 
