358 BULLETIN 50^ UNITED STATES NATIONAL MUSEUM. 



two black areas (sometimes basal portion of culmen also) chestnut, 

 the rest of maxilla yellow, with green on middle portion of culmen 

 (more or less extensively) and along edge of middle portion of black 

 tomial area; mandible black, with a basal V-shaped area of white; 

 base of maxilla, below nostril, with an embossed, enamel-like, usually 

 sulcate, bar of white, yellowish white, or pale yellow; iris dark brown; 

 orbits dusky slate, with a crescentic space of pale olive-gray beneath 

 eye; legs and feet light grayish olive-green." 



Young. — Exactly like adults in coloration, but texture of plumage 

 different, and coloration of bill duller, with "pattern" less distinct. 



Adult male. —Length (skins), 283-305 (294); wing, 115-126 (122.4); 

 tail, 98-109.5 (104.4); culmen, 62.5-73 (66.8); tarsus, 31-35 (33.2); 

 outer anterior toe, 23.5-26 (24.7).^ 



Adult female.— Length, (skins), 257-311 (267); wing, 115-126.5 

 (120.1); tail, 95-108 (100); culmen, 52-61 (57.2); tarsus, 31.5-34 

 (32.9); outer anterior toe, 23-26.5 (24.7).^= 



Highlands of Costa Rica (NaT*anjo, Navarro, Cartago, and Birris, 

 Cartago; La Palma de San Jose; Vo^can de Irazii; Volcan de Tur- 

 rialba; Volcan de Barba; Coliblanco; Guayabo; Monte Redondo; 

 Barranca, Volcan de Poas; Copey, Dota, and Santa Maria, Dota) and 

 western Panama (Boquete; Calovevora; Santa Fe; Calobre, south 

 slope of Volcan de Chiriqul). 



Aulacorhamphus cseruleogularis Gould, Proc. Zool. Soc. Lond., xxi, no. ccl, 

 July 25, 1854, 45 (Veragua, Panama); Ann. and Mag. N. H., 2d ser., xvi, 

 1855, 390 (Veragua).— Cassin, Proc. Ac. Nat. Sci. Pliila., 1867, 121.— Salvin, 

 Proc. Zool. Soc. Lond., 1867, 157 (Santa Fe de Veragua, Panama); 1870, 211 

 (Calovevora, Veragua). 



Aulacoramphiis cseruleogularis Gould, Mon Ramphast., ed. 2, 1854, pi. 51 and 

 text. — BoucARD, Proc. Zool. Soc. Lond., 1878, 47 (Naranjo, Costa Rica.) 



Aulacorhamphus cseruleigularis Lawrence, Ann. Lye. N. Y., ix, 1868, 129 (Bar- 

 ranca, Dota, and Turrialba, Costa Rica). — Frantzius, Journ. fiir Om., 1869, 

 362 (Costa Rica).— Zeledon, Anal. Mus. Nac. Costa Rica, i, 1887, 123 (Na- 

 ranjo de Cartago, Navarro de Cartago, Cartago, Volcan de Irazii, and Monte 

 Redondo, Costa Rica). — Sclatbr, Cat. Bii'ds Brit. Mus., xix, 1891, 159 

 (San Jos^, Costa Rica; Calobre, s. slope Volcan de Cliiriqui, etc., Panama). — 

 Salvin and Godman, Biol. Centr.-Am., Aves., ii, 1897, 561 (Volcan de Barba, 

 Birris, La Palma de San Jose, etc., Costa Rica; Volcan de Chiriqui, etc. 

 Panama). — Bangs, Proc. New Engl. Zool. Club, iii, 1902, 33 (Boquete, 

 Chiriqui, Panama, 4,000 ft.). — Ridgway, Condor, vii, 1905, 158, in text 

 (Coliblanco, Costa Rica).— Ferry, Pub. 146, Field Mus. N. H., 1910, 266 

 (Guayabo and Coliblanco, Costa Rica; habits). — Carriker, Ann. Carnegie 

 Mus., vi, 1910, 576 (Costa Rica; habits, etc.). 



[Aulacorhaviphus] casruleigularis Sclater and Salvin, Nom. Av. Neotr., 1873, 110. 



Aulacorhynchus caeruleogularis Cabanis, Journ. fiir Om., 1862, 330 (Costa 

 Rica; crit.). 



a Fresh colors of specimens shot by the author in Costa Rica. 

 6 Eleven specimens (ten from Costa Rica). 

 c Ten specimens, from Costa Rica. 



