BIRDS OF NORTH AND MIDDLE AMEEtOA. 615 



HENICORHINA LEUCOPHRYS CASTANEA Ridgway. 

 CHESTNUT WOOD WREN. 



Similar to II. /. collina, but much darker (the back, etc., dark 

 chestnut and flanks deeper or brighter chestnut), throat le.ss distinctly 

 streaked with black, and bill smaller." 



Guatemala (exact locality unknown, but probably some part of the 

 Atlantic slope).'' 



HeterorMna griseicoUis (not Merulaxis griseicollis Lafresnaye) Baird, Review Am. 



Birds, 1864, 117, part (spec, from Guatemala in Lawrence collection) . 

 Henicorhiva leucophrys castanea Ridgway, Proc. Biol. Soc. Wash., xvi, Nov. 30, 



1903, 168 (eastern Guatemala; coll. Am. Mus. Nat. Hist.). 



HENICORHINA LEUCOPHRYS CAPITALIS Nelson. 

 GEAY-CROWNED WOOD WREN, 



Similar to H. I. collina^ but median portion of pileum grayish soot}^, 

 back, etc., duller brown (nearer mummy brown than chestnut-brown 

 or burnt-umber), the color of upper back more olivaceous and less 

 strongly or abruptly contrasted with color of hindneck; throat less 

 distinctly streaked with black (streaks sometimes wanting, except 

 laterally); bill smaller. 



Young. — Similar to adults, but entire pileum and hindneck uniform 

 wai'm-sepia brown, only slightly different from color of back, etc., and 

 white streaks on side of head narrower and less distinct. 



Adult male.— Liengih (skins), 97-10-i (101); wing, 56.5-57 (56.7); 

 tail, 30-31 (30.3) exposed culmen, 14.6; tarsus, 22-23 (22.7); middle 

 toe, 15-16 (15.3).'- 



State of Chiapas, southern Mexico (Pinabete, Tumbala^') and western 

 Guatemala (Volcan de Fuego; Volcan de Agua; Totonicapam). 



Cijphorinus prostJieleucus {not Scyialopus prostheleucus ScXaier) SALvmand Sclateb, 



Ibis, 1860, 397 (Volcan de Agua, Guatemala). 

 Heieroridna griseicollis (not Merulaxis griseicoUis Lafresnaye) Baird, Review Am. 



Birds, 1864, 117, part (Volcan de Fuego). 

 [Henicorhina'] leucophrys (not Troglodytes leucophrys Tschudi) Sclater and Sal- 



viN, Nom. Av. Neotr., 1873, 6, part (Guatemala). 



"This character may prove inconstant or unimportant; the single specimen exam- 

 ined is of unknown sex, and the female of H. I. collina sometimes has the streaks on 

 the throat obsolete. 



& Measurements of the type specimen are as follows: Wing, 54; tail, 27; exposed 

 culmen, 13.5; tarsus, 24; middle toe, 15.5. 



"Three specimens. 



<i The specimen from Tumbala, which is on the Atlantic slope, is in reality inter- 

 mediate in coloration between true H. I. capiialis (represented by specimens from 

 Pinabete and the Volcan de Fuego, both of which are on the Pacific slope) and 

 H. I. caManea. 



