372 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



with grayish ohve or dusky;'* rest of under parts sulphur yellow, the 

 chest and sides rather strongly tinged with olive-green and more or 

 less distinctly streaked with more grayish olive; axillars and under 

 wmg-coverts sulphur yellow; bill blackish or dusky horn color with 

 paler tomia, the lower basal portion of mandible pale colored ; iris 

 yellow; legs and feet pale brownish (in dried skins); length (skins), 

 S2.5-97 (92); wing, 48-50.5 (49.3); tail, 35.5-41 (35.9); exposed 

 culmen, 9.5-10.5 (10); tarsus, 14.5-16 (15.4); middle toe, 7.5-8.5 

 (7.8)." 



Adult female. — vSimilar to the adult male, but slightly smaller and 

 with feathers of crest shorter, with black center more concealed and 

 the feathers of forehead and anterior portion of crown margined with 

 rusty or cinnamon-rufous, the sides of head also usually more tinged 

 with this color; length (skins), 84-93 (87); wing, 43-46.5 (44); tail, 

 29-33 (30.9); exposed culmen, 10-11 (10.3); tarsus, 15-16.5 (15.2); 

 middle toe, 7.5-8.5 (7.8).^^ 



Young. — Similar to adults, but pileum plain brownish, feathers of 

 crest nuich shorter and throat much less distinctly streaked. 



Costa Rica (Grecia; Cervantes; Dota; Quebrada Honda; Naranjo; 

 Turrialba; Tucurrique; Carrillo; Bonilla; Juan Vifias; San Carlos; 

 Cariblanco de Sarapique) and Panama (Calobre; Chitra; Boquete; 

 Calovevora; Volcan de Chiriqui). 



Euscarthmas squainiciislaiiis (not Todirostrum squamxaisla Lafresnaye) Law- 

 rence, Ann. Lye. N. Y., ix, 1868, 111 (Cervantes, Grecia, and Dota, Costa 

 Rica). — Frantzius, Journ. fiir Orn., 1869, :307 (Quebrada Honda, Costa 

 Rica).— Salvin, Proc. ZooL Soc. Lond., 1870, 196 (Calobre, Chitra and 

 \ Boquete de Chitra, Panama). — Boucard, Proc. Zool. Soc. Lond., 1878, 62 

 (Naranjo, Costa Rica). 



" Younger birds are more narrowly and less distinctly streaked. 

 b Ten specimens tYom Costa Rica. 

 <-• Seven specimens. 



Average measurements of specimens of this species from separate geographic areas 

 are as follows: 



Locality. 



Wing. 



MALES. 



Two adult males from Peru (luca Mine) ■'>0. 



Two supposed adult males from Colombia (Bogota) .')4 



One adult male from Panama ( Boquete ) M. 5 



Ten adult males from Costa Riea 49. 3 



FEMALES. 



One supposed adult female from Bogota 



Three adult females from Panama 



Seven adult females from Costa Rica. 



47.5 

 46.6 

 44 



Middle 

 toe. 



8 

 875 



8 



8 



7.6 



7.8 



As might be supposed, Panama examples are intermediate between Costa Rican and 

 Colombian specimens. 



