THRYOPHILUS. 127 
Troglodytes bewickii, NewBerry, P. R. R. Rept. VI, 1v, 1857, 80.—Coorer 
& Sucxuey, ib. XII, u, 1860, 190.—Thryothorus bewickii, ScLATER, 
Catal. 1861, 22, no. 141 (in part). 
Hab. Pacific slope of United States. 
Smith- Collec-) Sex 
sonian| tor’s | and Locality. aes Received from Collected by 
No. No. | Age. ss 
9,517 52 re Simiahmoo, W. T. | Oct. 19,°57. | A. Campbell. Dr. Kennerly. 
7,126 | 253 oe Ft. Steilacoom. Feb, 1856. DrWiGeaSuckleyas |) Aes beter sists 
7,133 ale ib San Francisco, Cal. Eee easucceteial get rte lh © amototatatate 
5,516 Se 2 Petaluma, Cal. Mar, §,’56..| E. Samuels: |), feen.ee 
14 3¢ Fort Tejon, Cal. fore Ue SAn pee” Nalin) Licino dc 
7,127? ba ac Los Nogales, Mex. | Jan. 1859. Major Emory. Dr. Kennerly. 
Thryothorus bewickii, var. leucogaster. 
Troglodytes leucogastra, Gouup, P, Z. 8. 1836, 89 (Tamaulipas).—Bon. 
Notes Delattre, 1854, 43. 
? Thryothorus bewickii, Scuater, P. Z. 8. 1859, 372 (Oaxaca). 
Hab. Southern borders of United States, into Mexico. 
Smith-|Colleec-| Sex When 
sonian| tor’s | and Locality. Received from Collected by 
No. No. | Age. Collected. 
12,115? dc ¢ | San Antonio, Tex. | April15,’51.| Capt. Sitgreaves. | Dr. Woodhouse, 
7,130 ae .. | Ringgold Barracks, | Jan. 15, 53.) Major Emory. J. H. Clark. 
3,971 41 | 9 | Sta. Rosalio, [Tex. 
Tamaulipas, Mex. | Mar. 1853. Lt. Couch. 
3,970 158 | .. | New Leon, Guya- | April, 1833. Be 
9,119 |29.906 | .. | Mexico. [puco. mis 
22,388 |29,907 | g& | . ‘“ 
WeLreaticeuaee a || a amiisis eiefare 
oe 
(3,971.) Eyes dark-brown. (3,970.) Do. 
THRYOPHILUS, Barrp. 
Thryophilus, Bairp. (Type Thryothorus rufalbus.) 
Bill of Thryoihorus, 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 Troglodytide 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 
