THRYOPHILTJS. 



127 



Troglodytes bewickii, Newbekky, P. K. R. Kept. VI, iv, 1857, 80.— Coopek 

 & Sdckley, ib. XII, 11, 1860, 190. — Thryothorus bewickii, Sclateb, 

 Catal. 1861, 22, no. 141 (in part). 

 Hah. Pacific slope of United States. 



Locality. 



Simiahmoo, W. T. 

 Ft. Steilacoom. 

 Saa Francisco, Cal. 

 Petal u ma, Cal. 

 FortTejon, Cal. 

 Los Nogales, Mex. 



When 

 Collected. 



Oct 19, '57. 

 Feb. 1856. 



Mar. 8, '56. 



Jan. 1855. 



Received from 



A. Campbell. 

 Dr. G. Suckley. 



E. Samnels. 

 J. XantuB. 

 Major Emory, 



Collected by 



Dr. Kennerly. 



Dr. Kennerly. 



Tbryothorus IbeTv^ickii, var. leucogaster. 



Troglodytes leucogastra, Godld, P. Z. S. 1836, 89 (Tamaulipas). — Bon. 



Notes Delattre, 1854, 43. 

 ? Thryothorus bewickii, Sclatek, P. Z. S. 1859, 372 (Oaxaca). 

 Hab. Southern borders of United States, into Mexico. 



(3,971.) Eyes dark-brown. (3,970.) Do. 



THRYOPHILTTS, Baikd. 



Thryophilus, Baikd. (Type Thryothorus rufalbus.) 



Bill of Thryothorus, but more notched. Nostrils imperforate, broadly oval, 

 situated in the anterior extremity of the nasal groove, bounded behind by 

 bare membrane, but elsewhere by the bony outline of the nasal groove (at 

 least apparently so in the dried skin). The overhanging membranous scale 

 of Thryothorus appears thus to be entirely wanting, or reduced to a very rudi- 

 mentary condition. The vertical septum spoken of in Thryothorus as project- 

 ing into the posterior extremity of the nasal aperture here appears to be con- 

 tinued forward along the upper edge of the interior cavity of the nostrils to 

 the anterior extremity. Other characters much as in Thryothorus. 



In the introductory remarks on the Troglodytidse I have already 

 alluded to a genus of American Wrens, the species of which have 

 hitherto been included in the genus Thryothorus. They differ, how- 

 ever, in having a much more distinctly notched bill, and in the 

 peculiarly open nostrils, which seem to lack the overhanging scale 



