162 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
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). (Pseudocolaptex.) 
= Pseudocolaptes (p. 196). 
cc. Nostril oval or roundish, not distinctly operculate. (Automolez.) 
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 antie. 
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 antiz. 
f. Bill relatively broader basally and more compressed terminally, the tip 
of maxilla abruptly and strongly uncinate; upper parts conspicuously 
BITCAKEG.. 5 oc oinaos cesar aniedenaeeeatackes Ancistrops (extralimital).¢ 
jf. Bill relatively narrower basally and less compressed terminally, the tip’ 
of maxilla not abruptly noz strongly, if at all, uncinate; upper parts 
not streaked. 
g. Bill excessively compressed, its width at loral antiz 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).d 
gg. Bill only moderately compressed, its width at loral antie 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 
anti 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).c 
gg. Bill larger and stronger, less decurved terminally (except at ex- 
treme tip), with gonys strongly ascending terminally. 
Xenicopsis (p. 205). 
Jf. Bill larger, the culmen (from base) longer than tarsus; anterior toes less 
extensively united basally................2...... Automolus (p. 211). 
ee. Bill larger and stouter, less compressed, its width at loral antise nearly 
equal to its depth at same point, distinctly uncinate; shafts of rectrices 
More Tigid At tpi... eis sccicrcsivscwieis ae vesmwainele o4 os Rhopoctites (p. 222). 
@ Ancistrops Sclater, Cat. Am. Birds, 1862, 157. Type, Anabates lineaticeps ea 
= Thamnophilus strigilatus Spix. (Upper Acnncout Valley; monotypic.) 
b Anabazenops Lafresnaye, Dict. Univ. d’Hist. Nat., i, 1841, 411. Type, Sitta 
fusca Vieillot—Anabatoides Burmeister, Syst. Ueb. Th. Bras., iii, 1856, 23. Type, 
Sitta fusca Vieillot. (Southeastern Brazil; monotypic.) 
¢ Heliobletus Reichenbach, Handb. der Spec. Orn., 1853, 201. Type, Dendro- 
colaptes superciliosus Lichtenstein. (Southeastern Brazil; monotypic.) 
‘ 
