152 Kelson Descriptions of Fotir New Birds from Mexico. 



dull whitish ; sides of body, flanks, thighs, and crissum dull black with 

 spots and bars of white. 

 One specimen examined. 



Empidonax fulvifrons fusciceps subsp. nov. 



Type No. 193,713, adult male, U.S. National Museum, Biological Sur 

 vey Collection. From Comitan, Chiapas, Mexico. Collected March 29, 

 1904, by E. A. Goldman. Original No. 10,625. 



Geographic distribution. Highlands of Chiapas and adjacent parts of 

 Guatemala. 



Subspeciftc characters. In size and color of underparts like typical fulvi 

 frons ; upperparts darker; crown much darker and strongly contrasted 

 with back. 



Four specimens examined ; from Comitan, Teopisca, and Tenejapa, 

 Chiapas. 



Arremenops superciliosus chiapensis subsp. nov. 



Type No. 193,714, adult male, U. S. National Museum, Biological Sur 

 vey Collection. From San Bartolome, Chiapas, Mexico. Collected. March 

 15, 1904, by E. A. Goldman. Original No. 10,533. 



Geographic distribution. Valley of the Chiapas River, Chiapas. 



Subspecific characters. Much like Arremonops s. snmichrasti but top of 

 head darker, the median stripe on crown darker and grayer ; back dark 

 green as in typical superciliosus ; distribution of buffy on underparts as in 

 Kumichrasti but color of a deeper or more creamy shade; size as in 

 sumichrasti. 



Nine specimens examined. 



Telmatodytes palustris tolucensis subsp. nov. 



MEXICAN MARSH WUKN. 



Type No. 194,074, adult male, U. S. National Museum, Biological Sur 

 vey Collection. From Lerma, Mexico. Collected July 5, 1904, by E. A. 

 Goldman. Original No. 10,950. 



Geographic distribution. Known only from Tuluca Valley, Mexico. 



Sabspecific characters. Size less than in palustris; black dorsal area 

 averages larger ; rufous of back brighter ; underparts much more reddish 

 buffy. 



Description of type (in worn breeding plumage). Top of head blackish 

 with traces of a brown median line ; middle of back black with well defined 

 white shaft streaks; rump and upper tail coverts rich reddish brown; 

 middle tail feathers dull grayish brown mottled with darker and indi 

 stinctly barred with same basally ; underparts dull dark reddish buffy 

 (including pectoral area) becoming dingy whitish on chin and throat and 

 middle of abdomen. 



Measurements of type. Wing, 51 ; tail, 40; culmen, 12; tarsus, 20. 



Seven specimens examined, all from type locality. 



