BIRDS OK NORTH AND MIDDLE AMERICA. 005 



[A))orthuri( i roglndijlrs \ar. hijemali.i] c. alanceuitis Covks, Hinls Northwest, 1874, 



'.VA, part (in Hvnonymy). 

 AliiortliKi-dl t[roglodytes] alascensis Coves, Key N. Am. I'.inls, IM cil., 1SS4, 279, 



part. 

 A)torlhur<i vicflycra Oberiiolsek, Auk, xvii, Jan., 1900, 2o (Attn I., western 



Aleutians; coll. U. f?. Nat. Mus. ). — A.mkpican Okmtholckjists' T'nion Co.m- 



MiTTKE, Auk, xviii, 1001, 307 (check list no. 723.1). 

 Olbiorchilus meligenis Obekholser, Auk, xix, Apr., 1902, 178. — Amkkk an Okni- 



THOLOGiSTs' Union COMMITTEE, Auk, xix, 1902, 330. 



Genus THRYORCHILUS Oberholser. 



Thri/orrhiliisu Obekiiolser, Proc. U. S. Nat. Mus., xxvii, no. 1354, Jan. 23, 1904, 198. 

 (Type, Troglodytes broumi Bangs.) 



Small, very short-tiiilod, long'-loofrcd Tro<^lodytida\ re.soml)lin^ 

 Ilenlcorlilna and Nannorch'dus^ but with only lU in.stead of 1:^ rec^trices, 

 and with the nostril narrowly ovate, longitudinal, and distinctly oper- 

 culato, as in Troghxlytcx. 



Bill shorter than head, its depth at frontal antiie a little less than 

 one-fourth the exposed culmen, the latter decidedly shorter than 

 middle toe without claw; culmen straig'ht for basal half or more, then 

 gradually decurved to tip; gonys straight, its base forming a slight 

 but distinct angle; maxillary tomium faintly concave, without trace 

 of subterminal notch; nostril narrowly ovate or pyriform (its nari'ow 

 end anteriorly), longitudinal, overhung b}^ a conspicuous excurrent 

 operculum, llictal bristles obsolete. Wing moderate in length, much 

 rounded; seventh, sixth, and fifth, or sixth, lifth, and fourth primaries 

 longest, the ninth much shorter than secondaries, the tenth (outer- 

 most) decidedly more than half as long as ninth. Tail about two- 

 thirds as long as wang, decidedly rounded, apparently consisting of 

 only ten rectrices. Legs and feet stout, the tarsus nearl}^ half as long 

 as wing; middle toe, with claw, decidedl}^ shorter than tarsus; outer 

 toe longer than inner, reaching (without claw) to middle of sub- 

 terminal phalanx of middle toe, the inner (without claw) reaching 

 considerabl}^ beyond penultimate joint of middle toe; hallux as long 

 as inner toe, or slightly longer, nnich stouter. 



Coloration.- — Above tawny-brown, the remiges and rectrices l)arred 

 with dusky, the primaries conspicuously edged with white; super- 

 ciliary stripe and under parts grayish white or pale gray, the tlanks 

 and under tail-coverts light tawn3'-brown; sides of neck streaked with 

 brown and whitish. 



RatKjc. — High mountains of Chiri(|ui (Volcan deChiri(|ui, lo.ooo to 

 10,500 feet). (Monotypic.) 



«"0/ot!'oj', juncu-s; dpxi^oi, regulus." 



