BIRDS OF NORTH AND MIDDLE AMERICA. 33 



much shorter than tarsus; outer toe, without claw, reacliing to 

 beyond middle of subterminal phalanx of middle toe, the inner 

 toe decidedly shorter; hallux about as long as inner toe but much 

 stouter; basal phalanx of middle toe wholly united to outer toe, 

 united for about half its length to inner toe; claws strongly curved, 

 much compressed, that of the hallux decidedly shorter than its digit. 

 Plumage full, lax, and blended, that of the rump much lengthened 

 and fluffy; feathers of pileum elongated, especially on occiput, 

 forming a distinct decumbent crest. 



Coloration. — Adult males with head, neck, chest, and median por- 

 tion of breast (usually of abdomen also) uniform black, the sides and 

 flanks white or light gray; wings and tail black varied with white, 

 the back brown or grayish, or black with a large concealed patch of 

 white; adult females olive-brown to tawny-brown above, the wings 

 dusky varied with buffy or whitish, the pileum blacldsh or rufescent ; 

 under parts plain buffy (more wdiitish on throat and abdomen). 



Range. — Northern Colombia to Cayenne, southeastern Brazil, 

 Bolivia, and northern Peru. (About seven species.) 



HYPOLOPHUS CANADENSIS PULCHELLUS (Cabanis and Heine;. 



COLOMBIAN CRESTED ANTSHRIKE. 



Adult male. — Pileum (including well-developed occipital crest) 

 black, the forehead (sometimes crown also) streaked with white; 

 back, scapulars, and rump plain cinnamon or russet, the scapulars 

 and interscapulars with indistinct narrow mesial streaks of darker; 

 outer row of scapulars dark brown, broadly edged with white; wing- 

 coverts and tertials brownish black, all the former conspicuously 

 tipped with white, the latter broadly edgetl with, white or buffy 

 white; secondaries and primaries dusky grayish brown (dark hair 

 brown), the secondaries and inner primaries edged with hght brown, 

 the outer primaries edged with whitish; tail black, the rectrices 

 broadly tipped with white, the exterior pair with outer web white 

 (except basally); sides of head barred with black and white; chin, 

 throat, and median portion of chest black, this sometimes continued, 

 narrowly or brokenly, along the median Une of breast, the feathers 

 of chin and throat tipped with white; median under parts (except 

 where occupied by the black gular-jugular area, white; lateral 

 under parts pale gray anteriorly, passing into light cinnamon or clay 

 color posteriorly; under wing-coverts and broad edgings to inner 

 webs of remiges white or buffy white; maxilla brownish black, man- 

 dible sometimes more brownish (bluish gray in life ?) ; legs and feet 

 horn color (in dried skins); wing, 69-75 (72); culmcn, 18-20 (19); 

 tarsus, 27-27.5 (27.2); middle toe, 14.5-16 (15.2).« 



« Two specimens. 

 81255°— Bull. 50—11 8 



