600 Annals of the Carnegie Museum. 



k. Wing-coverts conspicuously tipped with buff-ochra- 



ceous: lower parts quite uniformly deep buff-och- 



raceous. Myrmotherula fulviventris , 9 . 



kk. Wing-coverts not conspicuously tipped (if at all); 



throat and flanks paler buff than breast. 



Myrmotherula axillaris, 9 (extralimital). 

 Myrmotherula melcena, 9 . 

 III. Tail much less than half the length of the wing (usually about one third); 

 legs strong and long. (Terrestiial forms.) 

 a. Size large (wing, 95 to no mm.). 



b. Lower parts strongly barred with black and white; pileum black; back and 

 wings rich seal-brown, middle of back slightly streaked with black. 

 c. Throat black. Pittasoma michleri zeledoni, $ . 



cc. Throat barred with buffy-white. Pittasoma michleri zeledoni, 9 • 



bb. Lower parts plain cinnamon-brown, with some dusky mottling on throat; 

 pileum ashy; back olive-green, feathers edged with black; wings rich 

 brown. Grallaria guatemalensis princeps, $, 9* 



b Flanks and under tail-coverts cinnamon-buffy or cinnamon-rufous; upper 

 parts dark ashy with a few buffy streaks or spots on scapulars; throat 

 white. 

 c. Cinnamon-buff y confined to flanks and under tail-coverts; breast buffy- 

 white, heavily streaked with black. Hylopezus intermedins, $ , 9 • 

 cc. Cinnamon-rufous covering chest as well as sides, flanks, and under tail" 

 coverts; black streaks on chest narrow and irregular. 



Hylopezus dives, $ , 9 • 



bb. Flanks and under tail-coverts white or only slightly tinged with olive-buff; 



throat and belly white; back ashy olive-brown. 



c. Chest cinnamon-rufous, scarcely streaked; pileum nearly coloi of back; 



size small (wing, 60 mm.). Grallaricula flavirostris costaricensis, $ , 9 • 



cc. Chest buff-ochraceous, broadly streaked with black; pileum ashy-olive; 



size larger (wing, 80 mm.). Hylopezus lizanoi, $ , 9- 



333. Cymbilanius lineatus fasciatus Ridgway. 



Cymbilanius lineatus Gray, Gen. Birds, 1840, 36. — Lawrence, Ann. Lye. 

 N. Y., IX, 1868, 107 (Angostura [J. Carmiol]). — Sclater, Cat. Birds Brit. 

 Mus., XV, 1890, 178, part (Angostura [Carmiol]). — Salvin and Godman, 

 Biol. Centr.-Am., Aves, II, 1892, 194, part (Costa Rican references). 



Cymbilanius lineatus fasciatus Ridgway, Proc. U. S. Nat. Mus., VI, 1883, 415 

 (Rio Sucio [Cooper]). — Zeledon, An. Mus. Nac. de C. R., I, 1887, 114 

 (Jimenez). — Richmond, Proc. U. S. Nat. Mus., XVI, 1893, 499 (Rio Frio, 

 Rio Sucio, Sipurio, Angostura). 



U. S. Nat. Museum : Guayabo and Bonilla (Ridgway and Zeledon), 

 Jimenez (Alfaro) (Verrill) (Cherrie) (Castro). 



Bangs Collection : La Vijagua and Carrillo ; three specimens (Under- 

 wood). 



