702 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Cypcelus collaris ALBRECHT, Journ. fiir Orn., 1861, 206 (Cuba). 
Nephocaetes collaris Gunpuacu, Journ. fir Orn., 1861, 330 (Cuba); 1862, 177 
(Cuba); 1874, 114 (Cuba; habits); Contr. Orn. Cuba, 1876, 83. 
Chetura zonaris (not Hirwndo zonaris Shaw) SciaterR, Proc. Zool. Soc. Lond., 
1861, 79 (Jamaica; crit.); 1863, 99, part (monogr.; Jamaica; Haiti); 1865, 
609, part (monogr.).— ALBRECHT, Journ. fiir Orn., 1862, 201 (Jamaica).—Cory, 
Auk, xii, 1895, 279 (Santo Domingo).—CuErr1z, Contr. Orn. San Dom., 1896, 
18 (Santo Domingo City).—Satvin and Gopman, Biol. Centr.-Am., Aves, ii, 
1893, 373, part (Greater Antilles)—MEnEGavx, Rev. Frang. d’Orn., no. 2, 
1909, 26 (Guantanamo and San Carlos, Cuba). 
Hemiprocne zonaris Cory, Auk, iii, 1886, 346; Birds West Ind., 1889, 141.— 
CHarman, Bull. Am. Mus. N. H., iv, 1892, 302 (San Juan, s. Cuba).—Scorr, 
Auk, ix, 1892, 276 (Jamaica; habits).—Fre.p, Auk, xi, 1894, 125 (Port Hen- 
derson, Jamaica). 
Alcanthylis] zonaris Newron (E. and A.), Handb. Jamaica, 1881, 108. 
Chetura zonaris pallidifrons Harter, Ibis, July, 1896, 368 (Jamaica; coll. Tring 
Mus.). 
Ch[ztura] zonaris pallidifrons Hartert, Das Tierreich, Podarg., Caprim., Macropt., 
1897, 74. 
Hemiprogne zonarta GUNDLACH, Orn. Cubana, ed. 1895, 97. 
[Chetura] pallidifrons SHarPz, Hand-list, ii, 1900, 91 (Jamaica; Haiti). 
Hemiprocna zonaris pallidifrons Banas and Zapprey, Am. Nat., xxxix, April, 1905, 
203 (Nueva Gerona, Isle of Pines). 
Streptoprocne zonaris pallidifrons OBERHOLSER, Proc. Biol. Soc. Wash., xix, May 
1, 1906, 69. 
STREPTOPROCNE SEMICOLLARIS (Saussure). 
WHITE-NAPED SWIFT. 
Adult male—Head, neck, and chest dark grayish sooty, slightly 
paler on forehead and chin (especially the former), the feathers of 
chin and throat with darker shafts; a white band across hindneck, 
the feathers of which are abruptly dark sooty basally; rest of plumage 
plain very dark grayish sooty, the back, scapulars, rump, and upper 
tail-coverts more blackish and faintly glossed with bronze-greenish; 
bill brownish black; iris dark brown; toes brownish black, the tarsi 
more brownish (in dried skin); length (skin), 238; wing, 228; tail, 
73; exposed culmen, 12; tarsus, 27; middle toe, 19.5.¢ 
South-central Mexico, in States of Mexico (San Joaquin, near City 
of Mexico) and Hidalgo (Irolo) 
Acanthylis semicollaris Dz Saussure, Rev. et Mag. de Zool., iii, March, 1859, 117 
(San Joaquin, near City of Mexico). 
Chetura semicollaris ScLater, Cat. Am. Birds, 1862, 282; Proc. Zool. Soc. Lond., 
1863, 99 (monogr.); 1865, 609 (monogr.); Journ. fiir Orn., 1867, 130.—ScLaTER 
and Satvin, Exotic Orn., pt. vii, 1866, 103, pl. 52.—Sumicurast, Mem. Bost. 
Soc. N. H., i, 1869, 562.—Hrrrera, La Naturaleza, (2), i, 1888 (Apunt. 
de Orn., p. 15).—Harrert, Cat. Birds Brit. Mus., xvi, 1892, 479.—Satvin 
and Gopman, Biol. Centr.-Am., Aves, ii, 1893, 374. 
[Chetura] semicollaris Gray, Hand-list, i, 1869, 69, no. 781.—SHarrr, Hand-list, 
ii, 1900, 92. 
2 One specimen. 
