552 NORTH AMERICAN BIRDS. 



.42, tarsus .80-.90. Sab. Western Mexico (mainland, Mazatlan 

 to Oaxaca). 



T. felix Scl. Happy Wren. 1 



d 2 . Lower parts white, the sides and flanks tinged with ochraceous ; 



sides of head (below upper margin of ear-coverts) immaculate 



white, or else very indistinctly streaked ; black line along side 



of throat indistinct or (usually) altogether wanting; length 



about 5.50-5.75, wing 2.30-2.45, tail 2.30-2.45, bill from nostril 



.45-.48, tarsus .80. Sab. Tres Marias Islands, western Mexico. 



T. lawrencii (Ridgw.). Tres Marias Wren. 2 



c 2 . Chest and breast spotted with black. 



d 1 . Back umber-brown, top of head deep russet ; tail light brown, 

 broadly barred with black ; flanks umber-brown. 

 e l . Less intense brown above, flanks rather paler brown, and less 

 heavily spotted on chest, etc. ; wing 2.20-2.40, tail 1.95- 

 2.10, exposed culmen .55-62, tarsus .85-.90. Sab. South- 

 ern Mexico (Oaxaca, Tehuantepec, Orizaba, etc.). 



T. maculipectus Lair. Spotted-breasted Wren. 5 

 e 2 . More intense brown above and on flanks, and more heavily 

 spotted on chest, etc. ; wing 2.30-2.50, tail 2.05-2.20, ex- 

 posed culmen .65-68, tarsus .85-.90. Sab. Guatemala (also 

 Honduras and Nicaragua, and Salvador ?). 



T. maculipectus umbrinus Ridgw. Umber Wren.' 



d 2 . Back lighter, more grayish, brown (nearly a hair-brown tint) ; top 



of head light russet-brown ; tail brownish gray, broadly barred 



with black ; flanks pale brown. 



Breast, etc., rather sparsely spotted, as in T. maculipectus 



proper ; wing 2.30-2.35, tail 2.10-2.15, exposed culmen .62, 



tarsus .80-.85. Sab. Yucatan. 



T. maculipectus canobrunneus Ridgw. Temax Wren. 5 



Genus TROGLODYTES Vieillot. (Page 540, pi. CXKL, figs. 1, 8.) 



Species. 



Common Characters. — Above brown, more or less distinctly barred with 

 darker on wings and tail (sometimes on back also) ; beneath varying from mostly, 

 or entirely, white, to deep brownish, plain, or (usually) more or less varied (chiefly 

 on posterior portions) with darker and lighter bars or specks. 



i Thryothorue felix Scl., P. Z. S. 1859, 371. 



2 Thryothorus felix p. lawrencii Ridgw., Ball. Nutt. Orn. Club, Hi. Jan. 1878, 10. Thryothorus lawrencii 

 Salv. & Godm., Biol. Centr.-Am. i. Apr. 1880, 93. 



3 Thryothorua maculipectus Lafe., Rev. Zool. 1845, 338. 



1 New subspecies. Honduras specimens are probably referable to this form, but I have not been able to 

 examine any from that country. An example from " Central America" (probably from Nicaragua) collected by 

 F. Hicks (Nat. Mus. No. 40973) agrees closely with the darker-colored examples from Guatemala, but the 

 spotting on breast is still heavier and apparently extends backward over whole abdomen. 



6 New subspecies ; type No. 106243, U. S. Nat. Mus., Temax, Yucatan, G. F. Gaumer. 



