72 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



{?) II[irundo] rnelampyga Lichtenstein, Verz. Doubl., 1823, 57 (Bahia, Brazil; 

 coll. Berlin Mus. )• 



Hirundo melanoleuca (not of Maximilian) Gray, Cat. Fissirostr. Birds Brit. Mus., 

 1848, 26. 



Atticora cyanoleuca, var. montana Baird, Keview Am. Birds, May, 1865, 310 

 (Barranca, Costa Rica; coll. U. S. Nat. Mus.; also, San Jose, Costa Rica, 

 Bogota, and Peru). — Lawrence, Ann. Lye. N. Y., ix, 1868, 96 (San Jose 

 and Barranca, Costa Rica). — Frantzius, Journ. fiir Orn., 1869, 294 (Costa 

 Rica). 



Atticora ajanoleuca, . . . var. montana Boucard, Proc. Zool. Soc. Lond., 1878, 

 67 (San Jos6 and Cartago, Costa Rica). , 



Atticora cyanoleuca montana Zeledon, Anal. Mus. Nac. Costa Rica, i, 1887, 107 

 (Navarro de Cartago, Zarcero de Alajuela, and Alajuela, Costa Rica). — 

 Allen, Bull. Am. Mus. N. H., ii, no. 2, 1889, 80 (Valparaiso, Chile; crit.).— 

 Cherrie, Auk, ix, 1892, 22 (San Jos^, Costa Rica; descr. young and nesting 

 habits). — Berlepsch and Stolzmann, Proc. Zool. Soc. Lond., 1892, 374 

 (Lima and lea, Peru). — Bangs, Proc. New Engl. Zool. Club, iii, Jan. 30, 

 1902, 60 (Volcan de Chiriqui, 10,800 ft. alt.). 



Genus RIPARIA Forster. 



Riparia « Forster, Synopt. Cat. Brit. Birds, 1817, 17. (Type, Riparia europsea 



Forster,— Hirundo riparia Linnseus. ) 

 Clivicola Forster, Synopt. Cat. Brit. Birds, 1817, 55. (Type, C. europsea Forster, = 



Hirundo riparia Linn^us. ) 

 Cotile & Boie, Isis, 1822, 550. (Type, Hirundo riparia Linnaeus. ) 

 Cotyle (emendation) Boie, Isis, 1826, 971. 



Small Hirundinid^e (wing less than 110 mm.) with a tuft of small 

 feathers on lower portion of posterior side of tarsus; long claws, that 

 of hallux exceeding the digit in length and those of lateral toes reach- 

 ing beyond base of middle claw; color, grayish brown above, beneath 

 white with a gra3dsh brown band across chest. 



Bill small (exposed culmen equal to about half the distance from 

 nostril to eye), moderately depressed, its depth at nostrils equal to more 

 than half its width at same point; culmen straight to near tip, where 

 gently but decidedly decurved; gonys slightly convex, ascending 

 terminally'; maxillary tomium faintly concave, its subterminal notch 

 small but very distinct. Nostril rather large, ovate, opening laterally, 

 overhung by a distinct membraneous operculum, posteriorly in con- 

 tact with feathering of frontal anti». Rictal bristles obsolete. Tail 

 about half as long as wing (equal to or slightly longer than distance 

 from bend of wing to tip of longest secondaries), emarginate (depth of 

 emargination equal to not more than one-sixth its length), the lateral 

 rectrices moderately contracted terminally, with tips obtusely pointed. 



a See Coues, Auk, xv, July, 1898, 271, and Oberholser, Auk, xvi, July, 1898, 281. 



Riparia Meuschen, 1784 (MoUusca), antedates Forster's application of the same 

 name and would disbar the latter had it any nomenclatural status, which Mr. Dall 

 informs me it has not. 



''From KcoriXXeiy, to prattle; see Wharton, Ibis, 1879, 451. 



