BIRDS OF NORTH AND MIDDLE AMERICA. 85 



Hirundo domesiica var. PaljjAS, Zoogr. Eosso-Asiat., i, 1826, 530, part. 



Hirundo rvMica var. rufa (not Hirundo rufa Gmelin) Middendorpi', Sibir. Reise, 

 ii, pt. 2, 1853, 188. 



Hirundo rufa (not of Gmelin) Kittlitz, Denkwiird., ii, 1858, 196. 



Hirundo rustica (not of Linnseus) Eaddb, Reise Siiden Ost-Sibir., 1862, 278. 



Hirundo tytleri Jekdon, Birds of India, iii, 1864, 870.— Blyth, Ibis, 1866, 336.— 

 Gray, Hand-list, i, 1869, 68, no. 790.— Hume, Stray Feath., 1875, 41; 1879, 

 84. — Walden, in Blyth's Birds Burma, 1875, 127. — Wardlaw-Ramsay, Ibis, 

 1877, 466.— Hume and Davison, Stray Feath., 1878, 41.— Simson, Ibis, 1882, 

 84.— GoDwiN-AusTEN, Ibis, 1882, 345.— Gates, Birds Brit. Burma, i, 1883, 

 304.— Sbebohm, Hist. Brit. Birds, ii, 1883, 171.— Sharpb and Wyatt, Mon. 

 Hirund., 1894, 249, pi. 41. 



[Hirundo rustica.'] Subsp. S. Hirundo tytleri Shakpe, Cat. Birds Brit. Mus., x, 

 1885, 140. , 



■Chelidon tytleri Stejnkqeb, Bull. U. S. Nat. Mus. , no. 29, 1885, 269 (Petropavlovsk, 

 Kamchatka; synonymy, critical, etc.); Proc. U. S. Nat. Mus., x, 1887, 143 

 (Bering I., Kamchatka, rare spring visitant) . , 



C[helidon'] tytleri Ridgway, Man. N. Am. Birds, 1887, 461. 



Hirundo cahirica (not of Lichtenstein) Godwin-Austen, Journ. Asiat. Soc. Bengal, 

 1874, 152. 



H[i,rundo'] americana (not of Gmelin) Blakiston, Ibis, 1876, 331, in text (Kam- 

 chatka; crit. ). — Blakiston and Pryee, Trans. Asiat. Soc. Jap., viii, 1880, 

 311. 



Hirundo americana ? Blakiston, Ibis, 1878, 386 (Kamchatka; crit.). 



Hirundo erythrogastra (not of Boddaert) Blakiston and Pryer, Trans. Asiat. 



' Soc. Jap., X, 1882, 139. — Blakiston, Amend. List Birds Jap., 1884, 47. 

 CAeKdon«iT/i7irogfasterSTEJNEGBE,Proc. U. S. Nat. Mus., vi, 1883, 72 (Pelropavlovsk, 

 Kamchatka) . 



Hirundo gutturalis (not of Scopoli) Taozanowski, Bull. Soc. Zool. France, 1882, 

 385.— Dybowski, Bull. Soc. Zool. France, 1883, 357. 



Hirundo saturata "Stejneger, MS.," Eidgway, Proc. TJ. S. Nat. Mus., vi, July 

 21, 1883, 95 (Petropavlovsk, Kamchatka; coll. U. S. Nat. Mus.). 



Genus IRIDOPROCNE Coues. 



Iridoprocne CouES, Birds Col. Val., 1878, 412, in text. (Type, Hirundo Ucolor 

 Vieillot. ) 



Medium-sized or small Hirundinidse (wing less than 125 mm.) with 

 narrow operculate nostrils opening laterally; frontal feathers not 

 extending as far as anterior end of nostrils; tail not more than half as 

 long as wing, .forked for less than one-fourth its length; claws of 

 lateral toes reaching nearly or quite to base of middle claw; upper 

 parts glossy steel blue or green in adults (with or without a white patch 

 on rump), the under parts white. 



Bill variable as to relative size," but length of exposed culmen always 

 much greater than half the distance fron; nostril to eye, its width at 

 frontal antise varying from decidedly less than length of exposed 

 culmen (in I. hicolor) to decidedly more (in I. leucorrhoa), its depth at 

 same point equal to about half its width (more in /. hicolor); maxillary 



a Smaller, narrower, and weaker in /. Ucolor ecad^ I. meyeni; larger, broader, and 

 stronger in I. albilinea, I. leucoptera, and /. leucorrhoa. 



