BIRDS OF NORTH AND MIDDLE AMERICA. 465 
Sylochelidon caspius LawRENc#, Ann. Lyc. N. Y., v, 1852, 37 (Long Island; New 
Jersey; crit.). 
Hel[opus] caspius Waatsr, Ibis, 1882, 1224. 
Sterna (Thalasseus) caspia Couss, Birds Northwest, 1874, 667 (monogr.). 
S[terna] (T)[halasseus] caspia Cours, Key N. Am. Birds, 2d ed., 1884, 757. 
[Sterna caspia] 8 Guerin, Syst. Nat., i, pt. ii, 1789, 604.—Larnam, Index Orm., 
4i, 1790, 804. 
Sterna caspica SPARRMAN, Mus. Carls., ii, fasc. 3, 1788, no. 62.—Powys, Ibis, 1860, 
356 (Corfu; Epirus).—Krrx, Ibis, 1864, 337 (mouth of Zambesi River, 
Africa, breeding).—Krtuer, Orn. Carinthiae, 1890, 306. 
Sylochelidon caspica REicHENBACH, Av. Syst. Nat., 1850, pl. 4; Longipennes, 
1852, 5. 
Thalasseus caspicus RocHEBRUNE, Faun. Sénégal, Ois, 1884, 336. 
Hydroprogne caspica Kaur, Sk. Entw. Eur. Thierw., 1829, 91. 
Sterna tschegrava LEPrecuin,? Nov. Comm. Petrop., xiv, pt. i, 1770, 500, pl. 18, 
fig. 2 (south Russia).—AMERICAN ORNITHOLOGISTS’ Union, Check List, 1886, 
and 2d ed., 1895, no. 64.—Nztson, Rep. Nat. Hist. Coll. Alaska, 1887, 58 
(mouth of Yukon River and near St. Michaels, occasional visitant).—Brcx- 
Ham, Proc. U. 8. Nat. Mus., x, 1888, 644 (Corpus Christi, etc., Texas).— 
Raoaps, Proc. Ac. Nat. Sci. Phila., 1892, 101 (Nueces Bay, Texas).—Wurre, 
“Auk, x, 1893, 222 (Lake Michigan).—Harrison, Wilson Bull., no. 12, 1897, 
8 (La Crescent, Minnesota, 8 specs., Sept. 14, 20 specs. Sept. 15, 1896). 
Hydroprogne tschegrava tschegrava Maraews, Birds Australia, ii, pt. 3, Sept. 20, 
1912, 337 (shores of Caspian Sea, breeding). 
Larus atricilla (not of Linneus) Guetin (S. G.), Nov. Comm. Petrop., xv, 1771, 
478, pl. 22, fig. 2 (Tscherkask). 
Sterna megarhynchos Wor and Meyer, Vig. Deutschl., ii, 1805, 83 and fig.— 
Meyer and Wotr, Taschenb. Deutach. Vog., ii, 1810, 457 and fig. 
Sterna schillingt BREuM, Beitr. Vogelk., iii, 1822, 641, pl. 4; Lehrb. Eur. Veg. - 
1824, 681. 
Sylochelidon schillingt Bream, Vég. Deutschl., 1831, 770; Vogelf., 1855, 345; 
Naumannia, 1855, 295. 
Sylochelidon balthica Breum, Vég. Deutschl., 1831, 769; Vogelf., 1855, 345; 
Naumannia, 1855, 295. ; 
Thalassites melanotis Swa1nson, Birds West Africa, ii, 1837, 253 (w. Africa; type 
now in coll. Cambridge [England] Mus.). 
Sylochelidon melanotis Boin, Isis, 1844, 186. 
[Sylochelidon] melanotis Bonaparte, Compt. Rend., xlii, 1856, 772. 
Sterna melanotis Harttaus, Orn. West-Afr., 1857, 254.—Forsss, Ibis, 1883, 500 
(Bonny; large colony). 
Sylochelidon macrorhyncha Bore, Isis, 1844, 186. 
Sylochelidon strenwus Gouup, Proc. Zool. Soc. Lond., (pub. May) 1846, 21 (s. 
coasts Australia; Bass Straits and Tasmania, breeding; coll. J. Gould?); Birds 
Australia, vii, 1848, pl. 22 and text.—RericHEnBacH, Vég. Neuholl., ii, 1850, 
9, 346. 
[Sylochelidon] strenua Bonararts, Compt. Rend., xlii, 1856, 772. 
Hydroprogne tschegrava strenua Maruews, Birds Australia, ii, pt. 3, Sept. 20, 
1912, 333, 337 (Australia). 
Sterna cayana (not of Latham) Ricnarpson, Journ. Boat-Voy., i, 1851, 87, 155 
_ (Great Slave Lake, breeding). 
Sterna major ExuMAN, Zool., 1861, 7472 (New Zealand). 
@ Lepechin has anteriority over Pallas (see Sterna caspia Pallas), but of the six species 
described in his paper only three are binomial. 
40017—19—Bull. 50, pt 831 
