BIRDS OF NORTH AND MIDDLE AMERICA. 65 



Salvin, Proc. Zoo]. Soc. Lond., 1879, 496 (Remedies, province Antioquia, 

 Colombia). — Tacz.\nowski, Proc. Zool. Soc. Lond., 1877, 744 (Lechiigal, \v. 

 Peru). — Salvin and Godman, Biol. Centr.-Am., Aves, i, 1883, 238, part 

 (Angoi^tura, Costa Rica; Chitra, Veragua; Obispo station, Panama R. R. ; 

 Rio Truando, Colombia). — Beklepsch and Taczanowski, Proc. Zool. Soc. 

 Lond., 1883, 543 (Chimbo, w. Ecuador; crit. ). — Taczanowski and Ber- 

 LEPScn, Proc. Zool. Soc. Lond., 1885, 75 ( Yaguachi, Ecuador). — Sharpe, Cat. 

 Birds Brit. Mus., x, 1885, 209, part, 637 (Costa Rica; Chitra, Veragua; Panama; 

 Bogota and Santa Elena, Colombia; Esmeraldas and I5abahoyo, w. Ecuador; 

 Venezuela). — Zeledon, Anal. Mus. Nac. Costa Rica, i, 1887, 107 (Panama; 

 Costa Rica).— Richmond, Proc. U. S. Nat. Mus., xvi, 1893, 48() (Rio Frio, 

 Costa Rica; Rio Escondido, Nicaragua). — Sharpe and Wyatt, Mon. Hirund., 

 1894, 651, 655, part, pi. 127.— Chapman, Bull. Am. Mus. N. H., vi., 1894,28 

 (Trinidad).— Bangs, Proc. Biol. Soc. Wash., xii, 1898, 142 (Santa Marta, 

 Colombia). — Salvadori and Festa, Boll. Mus. Zool., etc., Torino, xv, no. 

 357, 1899, 11 (Vinces, w. Ecuador).— Allen, Bull. Am. Mus. N. H., xiii, 



1900, 171 (Bonda, Santa Marta, Colombia). 



IStelgidopteryxl gutturalis Baikd, Review Am. Birds, May, 1865, 314 ( =S. fulvi- 



gula, p. 318). 

 [Stelgidopteryx'] uropygialis Sclater and Salvin, Nom. Av. Neotr., 1873, 15. 

 Stelgidopten/x ruficollis uropygialis Bangs, Proc. New Engl. Zool. Club, ii, July 31, 



1901, 59 (Panama; Chiriqui; Costa Rica; descr.); Auk, xviii, 1901, 368 

 (Divala, Chiriqui). — Berlepsch and Hartert, Novit. Zool., ix, 1902, 15 (La 

 Priciiin, Caura R., Venezuela). 



Stelgidopteryx fidvigida Baird, Review Am. Birds, May, 1865, 318 (Angostura, 

 Costa Rica; coll. U. S. Nat. Mu8.;=juv.). — Frantzius, Journ. fiirOrn., 1869, 

 295 (Costa Rica). —Salvin, Ibis, 1869, 313, in text (crit.; refers it to S. fuM- 

 pennis Sclater); 1874, 307 (crit.; refers it to aS'. uropygialis). 



ICotile] fulvigxda Gray, Hand-list, i, 1869, 73, no. 871. 



Stelgidopteryx ruficollis sequalis Bangs, Proc. New Engl. Zool. Club, ii, July 31, 

 1901, 58 (Santa. Marta, Colombia; coll. A. E. and O. Bangs). 



Genus NOTIOCHELIDON Baird. 



Notiochelidon Baird, Review Am. Birds, May, 1865, 270, 305, 306. (Type, Atti- 

 cora pileata Gould.) 



Small Hiruiidimda? (wing- not more than 95 mm.) with nostrils small, 

 roundish, openino- superiorly; tarsus longer than middle toe, without 

 claw; tail more than half as long' as wing, forked for about one-third 

 its length; middle toe united to outer by the whole of its basal and 

 about half its subbasal phalanx; back sooty brown, deepening into 

 soot}'^ black on wings and tail, the pileum and sides of head glossy 

 black, the abdomen white. 



Bill very short, but relatively rather deep, its depth at gonydeal 

 angle much greater than half its width at base; exposed culmen much 

 less than distance from nostril to eye, slightly les.s than half the length 

 of tarsus, .straight ])asally, strongly decurved terminally; gonys nearly 

 straight, ascending terminally, its basal angle prominent; maxillary 

 tomium with subterminal notch minute but distinct. Nostril small, 

 roundish or broadly ovate (the posterior end narrower), opening supe- 

 riorl}^ with membrane broader below than above. Tail more than 

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