BIRDS OF NORTH AND MIDDLE AMERICA. 149 
Young.—Pileum and hindneck dull slate color, with narrow 
mesial guttate streaks of buff; chest and breast similar but ground 
color rather lighter brownish slate and streaks broader; otherwise 
like adults, but middle and greater wing-coverts with distinct (though 
not sharply defined) terminal or subterminal spots of tawny, and 
with a very narrow terminal margin of black. 
Adult male.—(No specimens with sex determined examined.) 
Adult female—Length (skins), 163-175 (169); wing, 114-116.5 
(115.3); tail, 42-44 (43); culmen, 25.5-26 (25.7); tarsus, 46-50.5 
(48.3); middle toe, 24-25.5 (24.3).% 
Southern Mexico, in State of Chiapas (Tumbalaé), Guatemala 
(forests of northern Vera Paz; Cobién; Choctim; Calderas; Yax- 
camn4l; Savana Grande; Barranca Honda and Pajaél Grande, Volcan 
de Fuego), Honduras (Santa Ana), and northern Nicaragua (Mata- 
galpa). 
Grallaria guatimalensis Prevost and Des Murs, Zool. Voy. ‘Venus,’ Atlas, 
“1846” =1842, pl. 4 (Guatemala)—LarresnayeE, Rev. Zool., 1842, 334.— 
SciaTER, Proc. Zool. Soc. Lond., 1858, 280 (monogr.). 
Grallaria guatemalensis Priivost and Des Murs, Zool. Voy. ‘Venus,’ ‘'1855”= 
1849, 199.—Scuater and Satvin, Ibis, 1859, 119 (Cob4n, Guatemala) — 
Satvin, Ibis, 1861, 354, in text (Vera Paz, Guatemala) —Sciater, Cat. 
Am. Birds, 1862, 191 (Guatemala); Cat. Birds Brit. Mus., xv, 1890, 313 
(Choctim, Yaxcamné4l, Savana Grande, Calderas, Volc4n de Fuego, Barranca 
Honda, Volcan de Fuego, and Paj4l Grande, Volcin de Fuego).—Satvin 
and Gopman, Biol. Centr.-Am., Aves, ii, 1892, 240 (localities in Guatemala; 
Santa Ana, Honduras; Matagalpa, Nicaragua). 
[Grallaria] guatemalensis SctateR and Satvin, Nom. Av. Neotr., 1878, 75.— 
Saarpe, Hand-list, iii, 1901, 41 (Guatemala to Nicaragua). 
(2) Grallaria guatemalensis ? Ripeway, Proc. U. S. Nat. Mus., xiv, 1891, 470 
(Santa Ana, Honduras; descr. young). 
[Chamaeza] guatimalensis BoNAPARTE, Consp. Av., i, 1850, 204. 
Grallaria princeps (not of Sclater and Salvin) Boucarp, Ann. Soc. Linn. Lyon, 
1878, 39 (Guatemala). 
GRALLARIA GUATIMALENSIS PRINCEPS (Sclater and Salvin). 
COSTA RICAN ANTPITTA. 
Similar to G. g. guatimalensis but smaller and more deeply colored, 
the black squamations of upper parts broader, the general color of 
under parts bright tawny to rufous-tawny. 
Adult male.—Length (skins), 165-181 (172); wing, 110-115 (111.7); 
tail, 40-43 (41.3); culmen, 24.5-28.5 (27.4); tarsus, 44.5-52 (48); 
middle toe, 23-27 (25.2).° 
«Two specimens. Five specimens with sex undetermined measure as follows: 
Wing, 104-120 (112.6); tail, 37-44 (40.9); culmen, 24-28 (26); tarsus, 49-51.5 (50.1); 
middle toe, 24-25.5 (24.3). 
b Twelve specimens, 
