Page:Birds of North and Middle America partV Ridgway.djvu/190

162 and more pointed, the longest primaries exceeding secondaries by more than length, of exposed culmen; a tuft of elongated soft feathers on each side of neck; larger (wing 95 mm. or more). (Pseudocolapteæ.) Pseudocolaptes (p. 196).
 * cc. Nostril oval or roundish, not distinctly operculate. (Automoleæ.)
 * d. Basal phalanx of middle toe wholly united to both outer and inner toes.
 * e. Bill much longer, the exposed culmen longer than tarsus, its length from nostril equal to two and a half times its depth at loral antiæ.

Hyloctistes (p. 199).
 * ee. Bill much shorter, the exposed culmen shorter than tarsus, its length from nostril equal to but little more than twice its depth at loral antiæ.
 * f. Bill relatively broader basally and more compressed terminally, the tip of maxilla abruptly and strongly uncinate; upper parts conspicuously streaked.

Ancistrops (extralimital).
 * ff. Bill relatively narrower basally and less compressed terminally, the tip of maxilla not abruptly nor strongly, if at all, uncinate; upper parts not streaked.
 * g. Bill excessively compressed, its width at loral antiæ equal to only about two-thirds its depth at same point and less than one-third the distance from nostril to tip of maxilla; claw of hallux very large, as long as the digit.

Anabazenops (extralimital).
 * gg. Bill only moderately compressed, its width at loral antiæ equal to more than two-thirds its depth at same point and more than one-third the distance from nostril to tip of maxilla; claw of hallux smaller, decidedly shorter than the digit.

Philydor (p. 201).
 * dd. Basal phalanx of middle toe not wholly united to lateral toes.
 * e. Bill relatively smaller, more slender, more compressed, its width at loral antiæ much less than its depth at same point, not distinctly if at all uncinate; shafts of rectrices softer at tip.
 * f. Bill smaller, the culmen (from base) shorter than tarsus; anterior toes more extensively united basally.
 * g. Bill smaller and more slender, more decurved terminally, with gonys not ascending terminally.

Heliobletus (extralimital).
 * gg. Bill larger and stronger, less deciurved terminally (except at extreme tip), with gonys strongly ascending terminally.

Xenicopsis (p. 205).
 * ff. Bill larger, the culmen (from base) longer than tarsus; anterior toes less extensively limited basally.

Automolus (p. 211).
 * ee. Bill larger and stouter, less compressed, its width at loral antiæ nearly equal to its depth at same point, distinctly uncinate; shafts of rectrices more rigid at tip.

Rhopoctites (p. 222).