100 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



forked for 19-22 (20.5); exposed culmen, 6.6-7 (6.7); tarsus, 11-12 

 (11.5); middle toe, 10-11 (10. 5). « 



Young. — Brown above with a strong luster of oily green, a little 

 more pronounced on the back and wing-coverts; head and upper tail- 

 coverts more sooty brown, as also the upper margin of the ear-coverts: 

 cheeks, ear-coverts, and under surface of body white, with a patch of 

 sooty brown on the sides of the upper breast.^ 



Bahamas (Great Bahama, Abaco, Berry Islands, Eleuthera, New 

 Providence, Andros, Cay Sal, and Anguilla islands); accidental in 

 southern Florida (Garden Key, Dry Tortugas, April 7, 1890; Tarpon 

 Springs, September 3, 1890). 



Hirundo cyaneoviridis Bryant, Proc. Bost. Soc. Nat. Hist.,vii, 1859, 111 (Nassau, 

 New Providence, Bahamas; tyjje in coll. U. S. Nat. Mus.). — Baird, Review 

 Am. Birds, 1865, 303.— Salvin, Ibis, 1874, 307 (crit.).— Cory, Birds Bahama 

 Islands, 1880, 79. 



[Hirundo'] cyaneoviridis (tray. Hand-list, i, 1869, 72, no. 850. — Cory, List Birds 

 W. L,-1885, 10. 



CaUichelidon cyaneoviridis Baiud, Review Am. Birds, May, 1865, 297, in text. — 

 Cory, Auk, iii, 1886,^59; viii, 1891, 294 (New Providence), 295 (Berry 

 Islands), 350 (Great Bahama; Abaco), 352 (Anguilla; Cay Sal); Birds 

 W. I., 1889, 73; Cat. W. I. Birds, 1892, 16, 115, 127 (Great Bahama, Abaco, 

 New Providence, Andros, Cay Sal, and Anguilla islands, Bahamas). — Ameri- 

 can Ornithologists' Union Committee, Auk, viii, 1891, 87; Check List, 2d 

 ed., 1895, no. 615.1.— Ridgway, Auk, viii, 1891, 334 (Abaco I.).— Brewster, 

 Auk, xiv, 1897, 221 (Tarpon Springs, Florida, 1 spec, Sept. 3, 1890).— Bangs, 

 Auk, xvii, 1900, 288 (New Providence and Eleuthera islands). 



ICallichelidon] cyaneoviridis Baird, Review Am. Birds, 1865, 303. 



C\_aUichelidon'\ cyaneoviridis Baird, Brewer, and Ridgway, Hist. N. Am. Birds, 

 i, 1874, 338, footnote.— Ridgway, Man. N. Am. Birds, 1887, 462. 



CalicheUdon cyaneoviridis Scott, Auk, vii, July, 1890, 265 (Garden Key, Dry 

 Tortugas, Florida, 1 spec, Apr. 7, 1890), 312 (Dry Tortugas).— Northhop, 

 Auk, viii, 1891, 70 (New Providence and Andros islands; habits). 



Hirundo {CaUichelidon.) cyaneoviridis Baird, Brewer, and Ridgway, Hist. N. Am. 

 Birds, i, 1874, 327, footnote. 



Tachycineta cyaneoviridis Sharpe, Cat. Birds Brit. Mus., x, 1885, 121, 631. — Sharpe 

 and Wyatt, Mon. Hirund., 1894, 185, 193, pi. 26. 



Genus LAMPROCHELIDON, new genus. 



Kalochelidon (not CaUichelidon Baird, 1865) Bryant, Proc. Bost. Soc. Nat. Hist., 

 xi, Dec. 2, 1866, 95. (Type, Hirundo euchrysea, var. dominicensis Bryant, = 

 H. sclateri Cory. ) 



Lamprochelidon c Ridgway. (Type, Hirundo euchrysea Gosse.) 



Small Hirundinidte (wing not more than 116 mm.) with nostrils 

 almost concealed by superincumbent feathering of frontal antise, the 

 tail less than half as long as wing and forked for less than one-fourth 

 its length, the upper parts and under wing-coverts burnished metallic 

 golden or bronzy green, the under parts white. 



«Four specimens. 



6 Sharpe, Cat. Birds Brit. Mut<., x, 1885, 121. 



cFroxxiAa/iTtpos, shining; x^Xidayv, a swallow. 



