BIKDS OF NORTH AND MIDDLE AMERICA. 459 



188 (Cordillera del Chucu and Santiago, Veragua). — Lawrence, Ann. Lye. N. 

 Y., ix, 1868, 101 (Barranca).— Zeledox, Cat. Aves de Costa Rica, 1882, 8; An. 

 Mus. Xac. Costa Rica, i, 1887, 110 (Rio Sucio). — Salvix and Godmax, Biol. 

 Centr.-Ani.,Aves, i, 1881, 323.— Scl.\ter, Cat. Birds Brit. Mus., xi, 1886, 262 

 (Biiena Vista, Costa Rica, etc.). — Ridciway, Proc. U. S. Nat. Mus., xv, 1888, 

 540 (Rio Sucio, Costa Rica; crit. ). 



[Buarremon] crassirostris Sclater and Salvix, Nom. Av. Neotr. , 1873, 25. 



Buarremon mesoxanthiis Salvix, Proc. Zool. Soc. Lond., 1866, 72 (Santiago, Vera- 

 gua; coll. Salvin and Godman). 



Genus ATLAPETES Wagler. 



Atlapetes Wagler, Isis, 1831, 526. (Tj'pe, A. pileatus Wagler. ) 



Chrysopoga Boxaparte, Consp. Av., i, July 15, 1850, 480. (Type, Atlapetes chryso- 



pogon Bonaparte. ) 

 P/p(7op.sis Bonaparte, Consp. Av., i, July 20, 1850, 485. (Type, by elimination, 



Tanagra (Arremon) semiruf us HoissonesLU.) 

 Carenoclirous Sclater, Proc. Zool. Soc. Lond. , 1856, 87. (Type, Arremon latinuchus 



Du Bus. ) 



Medium-sized to rather large semi-terrestrial Fringillidfe with the 

 tail equal to or longer than the wing, decidedly rounded, the rectrices 

 somewhat pointed; wing much rounded, the ninth primary not longer 

 than tirst (usually shorter than secondaries), the seventh to fourth 

 longest; feet rather stout, the tarsus longer than middle toe, with claw; 

 plumage without streaks or spots, plain dusky slate, olive-green, olive- 

 brown, or (more rarely) blackish above, the pileum rufous or with a 

 whitish median stripe, the under parts partly or wholly yellow or else 

 white or white and gra3^ 



Bill rather small, conical, decidedl}- longer than deep; exposed cul- 

 men not more than half as long as tarsus; depth of bill at base a little 

 less than length of maxilla from nostril; culmen nearly straight to 

 near the tip, where decidedly convex; gonys nearly equal to distance 

 from nostril to tip of maxilla, slightly convex; maxillary tomium with 

 an obvious subterminal notch, then, successively, faintly concave and 

 convex anterior to the definite rictal deflection; mandibular tomium 

 straight (sometimes faintly convex terminally) to the more or less 

 toothed subbasal angle. Nostril rather small, horizontal, more or less 

 pointed anteriorly, operculate, or with overhanging superior mem- 

 brane. Rictal bristles inconspicuous. Wing rather short (two and a 

 half to nearly three times as long as tarsus), much rounded (ninth 

 primary shorter than secondaries, seventh to fifth longest) ; primaries 

 exceeding secondaries by less than length of exposed culmen. Tail 

 longer than wing, much rounded, the rectrices rather narrow, less 

 than half hidden by the coverts. Tarsus decidedh' longer than middle 

 toe with claw, its scutella fairly distinct on outer side; lateral claws 

 not reaching beyond base of middle claw (usually falling a little short); 

 hind claw shorter than its digit. 



