BIRDS OF NOKTH AND MTDDLK AMERTOA. f)35 



l\)iriniphiliix.'\ rii/tUhiis raslanoHutiis llKi.\M\\\i, \'«'rli. k. k. /.<»>]. -\<i>\. < icH-ll.-cli. 



AVien, 1901, 7()V», in text. 

 'I'liriinlJiorits rufalbua cn^tnnonohui Riih;\vay, Proc. U. S. Nat. Mus., x, si^;. :!:.', 



Au-r. (>,« 188S, 5ns (Angostura, Costa Rica; coll. IT. S. Nat. Miis.). 



THRYOPHILUS SINALOA SINALOA Baird. 

 SINALOA WREN. 



Aihtlf-'< !)> spi'uKj <(}t(! sainhier. — Pileum, liindneck, back, and scap- 

 ulars, plain i^rayisli tawny-brown (l)otwcen raw-uniber and broccoli 

 brown but much nearer the former); rump and upper tail-coverts 

 siinilai- but more rul'csccnt. inclining' more or less toward russet; tail 

 russet, rather broadly barred with dusky; wing'-coverts similar in 

 color to back, th(> greater wdth very indistinct bars of darker brown, 

 some of the middle coverts usuall}' with a small median streak or giit- 

 tate spot of i)aler (dull wdiitish or l)rownish white) margined, in i)art, 

 with dusky; remig-es cinnamon-brown, narrowly bai'red with dusk}', 

 the outermost primaries with interspaces much paler (pale w'ood 

 brownish); a rather narrow but sharply defin(»d and conspicuous super- 

 ciliary stripe of white or l)utt'y white; a narrow postocular stripe of 

 brown, occupying- upper portion of auricular region; sides of neck 

 broadly streaked with white and l)lack. the l)lack streaks narrower 

 than the white and edged with brown; suborbital, malar, and auricular 

 regions (except upper portion of latter) white, the last nai'rowly 

 streaked witli dusky, the first and second usually with very narrow 

 dusky margins to the feathers; under parts dull white, the sides of 

 chest more or less strongly shaded with pale brownish gray, this pa.ss- 

 ing into light brown (similar in hue to color of l)ack ]>ut })al(M') on 

 sides and flanks; undei- fail-coverts white, broadly barred with ))lack. 

 the black bai's narrowly margined with pale rusty l)i'own: maxilla 

 horn color with paler tomia; mandihle })ale hoi'u color (in dried 

 skins); iris brown;'' legs and feet i)ale horn color (in di'ied skins). 



Adidts In autunin and winter.-— '^\Vi\\\\\v to the spring and sununer 

 plumage, but more l)i-ightly colored, the general color of upper ])arts 

 more russet or ciimamon-brown, the flanks brightei" cinnanion-bro»>n 

 or tawny-oli\"e. 



)'(>ini<j. — Essentially like adults in coloration, but under tail-coverts 

 pale cinnamon. \'ery indistinctly l)arred with darker. flaid<s paler and 

 more decidedly cinnamon, whitish sui)erciliaiy and biown postocular 

 stripes less distinct, sides ot" nei'k streaked with brown and white (no 

 black streaks), and whif(> of under })arts more* or livss obscured by 

 indistinct ti})s or terminal margins of \ cry pale l»ully l>rown. 



" Although intended to be the first publication of the new form, the description 

 here cited was not i>ublished until nearly six months after the briefer or more gen- 

 eral one, without synonymy, in Proc. Bost. Soc. Nat. Hist., cited jireviously. 



'' Grayson, manuscript. 



