442 BULLETIN 50, TJNITI^D STATES NATIOISrAL MUSEUM. 



mark with the apex at the rictus; lores and orbital ring (interrupted 

 on middle portion of upper eyelid), malar region, chin, throat, breast, 

 and abdomen white, relieved by a narrow submalar stripe or line of 

 black, and a large spot or patch of the same in middle of chest; back, 

 scapulars, wings, tail, upper tail-coverts, and rump olixe or olive- 

 brown, becoming more grayish on upper back, hindneck, and lesser 

 wing-coverts; sides of neck and sides of breast dull gray, passing into 

 buff}^ grayish brown on sides and flanks; under tail-coverts pale buffy; 

 bill black; legs and feet horn brownish. 



Youny. — Similar to adults but colors much duller, the chestnut-rufoua 

 of head replaced by rusty brownish, more or less mottled or streaked 

 with dusky, the black markings of head and chest duller and less 

 sharply defined; feathers of back, etc., narrowlj^ tipped with dusky; 

 greater wing-coverts narrowly tipped with pale fuh'ous, and white of 

 under parts replaced by pale yellowish, more or less mottled with 

 dusky. 



Adult );)«/6^— Length (skins), 138.43-156.72 (150.37); wing, 67.82- 

 71.37 (69.09); tail, 56.64-64.77 (61.72); exposed culmen, 12.70-13.46 

 (13.21); depth of bill at base, S. 38-8. 89 (8.64); tarsus, 24.38-26.43 

 (25.15); middle toe, 16.00-17.78 (17.27).' 



Adult female.— l^ength. {skins), 140.21-150.88 (145.54); wing, 63.75- 

 65.79 (64.77); tail, 58.42-59.44 (58.93); exposed culmen, 12.45-13.21 

 (12.95); depth of bill at base, 8.38; tarsus, 23.88-24.89 (24.38); middle 

 toe, 16.51-17.27 (17.02).' 



Highlands of Costa Rica (San Jose, Grecia. Volcan de Irazii, Car- 

 tago, Navarro, Alajuela, etc.). 



Melozoiie biarcuata (not Pyrgita lilarruaht Provost) Cabanis, Journ. fiir Orn., 1860, 

 12 (San Jose, Costa Eica); 1866, 2:^S, part (Costa Eica). — Reichenbach, 

 Singvogel, 1862, 36, pi. 13, fig. 109. 



Pyrgisoma biarcaatum (not of Bonaparte) Sclatek, Cat. Am. Birds, 1862, 120, 

 part (Costa Eica). — Lawkence, Ann. Lye. X. Y., ix, 18(iS, 103 (Sau Jose, 

 Costa Eica). —Fraxtziis, Journ. fiir Oru., 1869, 301 (Costa Rica). 



PijrgisoiHU kiencri (not of Bonaparte) Cassin, Proc. Ac. X'at. Sci. Phila., 1865,169 

 (Costa Eica). — Lawrence, Ann. Lye. N. Y., ix, 1868, 103, 145 (San Jose and 

 Grecia, Costa Rica). — Fkantzius, Journ. fiir Orn., 1869, 302 (Costa Eica). 



Pyrgisoma cabaiiinl Sclater and Salvix, Proc. Zool. Soc. Lond., 1868, 324, 326 

 (San 3ob6, Costa Eica; coll. P. L. (Sclater); Exotic Orn., 1868, 129, pi. 65, 

 fig. 1. — Salvin, Ibis, 1869, 314 (San Jos6). — Boucard, Proc. Zool. Soc. Lond., 

 1878, 56 (San Jose; Oartago).— Nuti'ing, Proc. V. S. Nat. Mus., v, 1882,499 

 San Jos6). — Salvix and Godman, Biol. Centr.-Am., Aves, i, 1886, 403 (San 

 Jose, Grecia, and Irazu, Costa Rica). — Zeledox, An. ilus. Nac. Costa Eica, 

 i, 1887, 112 (Alajuela; San Jos^; Grecia; Cartago; Navarro). — Sharps, Cat. 

 Birds Brit. Mus., xii, 1888, 734.— Cherrie, Auk, ix, 1892, 248 (San Jos6; 

 habits; descr. nest and eggs and young). 



Pyrgisoma cahanmi Zeledon, Cat. Aves de Costa Eica, 1882, 9. 



[Pyrgieoma] caJanisi Scl.vter and Salvin, Nom. Av. Neotr., 1873,33. 



' Five specimens. '' Two specimens. 



