TUUYOPIIILUS. 



127 



Troglodi/tps hewlrkti, Nkwbkbrt, P. R. R. Rept. VI, iv, 1857, 80.— Coopbu 

 & SccKLEV, ib. XII, II, 18(iO, ]i)0. — Thryuthorua bewickii, Sclateb, 

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

 ffdb. Paciflo slope of United States. 



When 

 Collected. 



Oct 10, '.W. 

 Feb. IMG. 



Mar. 8, 'S6. 



Jan. 1835. 



Received Trom 



A. Campbi-ll. 

 Pr. 0. Suoklejr. 



E. Samuels. 

 ,1. XaiiluH. 

 Major Kinory. 



Collected by 



Dr. Kouiierly. 



Dr. Kennerly. 





lerably longer. 



Thryothorii» bevirickii, var. leiicogaHter. 



Troi/lodi/tea leucogantra, Oodld, P. Z. S. 1836, 89 (Tamaulipas). — Bov. 



Notes Delattre, 1854, 4.3, 

 ?Thry(>thnrus bewickii, Sclatku, P. Z. S. 1859, 372 (Oaxaoa). 

 Ilah. Southern borders of United States, into Mexico. 



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



le Tro(jlo(hji(s 



THRYOPHILUS, Baibd. 



Thri/ophilus, Bairi>. (Type Thryothorus rufalhas.) 



Bill of Thryoihoriis, but more notched. Nostrils iraperforpte, broadly oval, 

 situiited in the anterior extremity of the niisal 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 ovt-rhanging 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 iwaterior extremity of the nasil aperture here appears to be con- 

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

 the anterior extremity. Other characters much ab in Thryothorus. 



Ill the introductory roniarks on the Troglodytidae I have already 

 iiUiidod to a genus of American Wren.s, the spccieH of which luive 

 hitherto been inchidcd in the genus Thryothorus. They ditt'er, how- 

 ever, in having a much more di.stinctly notched bill, and in the 

 peculiarly open nostrils, which seem to lack the overhanging scale 



