250 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
length (skin), 230; wing, 105; tail, 87; exposed culmen, 37.5; tarsus, 
23; middle toe, 17. 
Eastern Mexico, in southern part of State of Tamaulipas (Alta 
Mira). 
Dendrornis striatigularis Ricamonp, Proc. U. 8. Nat. Mus., xxii, no. 1200, May, 
1900, 317 (Alta Mira, Tamaulipas; coll. U. S. Nat. Mus.). 
[Dendrornis] striatigularis Saarrr, Hand-list, iii, 1901, 78. 
Xiphorhynchus striatigularis OpeRHOLsER, Smithsonian Misc. Coll., xlviii, no. 
1579, May 13, 1905, 63. 
XIPHORHYNCHUS NANUS NANUS (Lawrence). 
LAWRENCE’S WOODHEWER. 
Adults (sexes alike) —Pileum and hindneck dark sooty brown or 
sooty blackish, each feather with a broad mesial guttate streak or 
mark of brownish buff; back and scapulars olive-brown (between 
raw-umber and mummy), the feathers of upper back with a broad 
mesial streak of brownish buff or pale tawny, margined with blackish; 
rump and upper tail-coverts plain cinnamon-rufous; tail, including 
shafts of rectrices, chestnut; remiges deep cinnamon-rufous, the 
primaries and distal secondaries edged (more or less distinctly) with 
grayish brown or olive; wing-coverts plain brown, nearly if not 
quite concolor with back; supra-auricular region pale brownish 
buff or dull buffy whitish, the feathers narrowly margined with dusky; 
auricular region streaked with light brown and dusky; suborbital 
region with feathers light buff margined with dusky, the malar region 
similar but with dusky margins to feathers much less distinct (partly 
obsolete); chin and throat plain light brownish buff or dull pinkish 
buff, the feathers of extreme lower throat narrowly margined with 
dusky; feathers of chest light brownish buff or dull pinkish buff 
centrally, those of upper chest wholly of this color except for a narrow 
but distinct margin of dusky, those of lower chest with a broad 
median ovate or elliptical stripe of buff margined laterally by a 
blackish line, the edges (more or less broadly) light buffy brown; 
rest of under parts light buffy brown (nearly wood brown or isabella 
color), the median portion of breast and abdomen usually with nar- 
row and indistinct streaks of paler; under wing-coverts ochraceous- 
buff, the inner webs of remiges deeper, inclining to cinnamon-rufous, 
the longer primaries with terminal portion dusky; maxilla blackish 
brown, mandible pale horn color or dull yellowish (in dried skins) ; 
feet horn color or dusky (in dried skins). 
Young.—Similar to adults but markings of under parts rather 
more strongly contrasted; only to be distinguished with certainty, 
however, by the softer and more lax texture of the plumage. 
