BIRDS OF NORTH AND MIDDLE AMERICA. 879 



neck, whole foreneck, lower throat, and median portion of chest and 

 breast covered with naked, inflatable skin, with a narrow median 

 line of rudimentary feathers (only the shafts developed), limning 

 from feathered area of upper throat to base of the appendage on 

 lower portion of foreneck, the latter naked but tipped with several 

 long, narrow, somewhat spatulate feathers; under wing-coverts 

 partly pale gray; inner webs of remiges brownish gray; bill dusky 

 horn color (in dried skins); the mandible paler; legs and feet dusky 

 horn color (in dried skins); length (skin),*^ 450; wing, 244.5-253 

 (249.4); tail, 116-120.5 (117.6); exposed culmen, 31.5-34 (32.1); 

 tarsus, 40.5-45 (43.4); middle toe, 36-37 (36.4).^ 



Adult female. — Much smaller than the male, with crest much 

 smaller and without recurved or repand margins; whole throat and 

 foreneclv feathered, but lower portion of the latter with feathered 

 area contracted; under parts of body dull grayish or brownish black 

 to sooty grayish brown, the feathers with narrow margms of paler; 

 length (skins), 335-415 (374); wing, 217-247 (224.3); tail, 111.5-132 

 (118.3); exposed culmen, 30-35 (32.5); tarsus, 38-44 (32.5); middle 

 toe, 30-35 (32.4).^ 



Highlands of Costa Rica (Dota Mountains; Angostura; Turrialba; 

 Volcan de Irazu, up to 10,000 feet; Bonilla; Coliblanco; Guacimo; 

 La Palma de San Jose; '^ San Jose'; KioSicsola) and western Panama 

 (Cordillera de Chiriqui, 8,000 feet; Cordillera de Tole; Calovevora; 

 Boquete, 4,000 to 6,000 feet). 



Cepluilopterus glahricollis Gould, Proc. Zool. Sue. Lond., 1850, 92, pi. 20 (Cordil- 

 lera de Chiriqui, 8,000 ft. alt., Panama; coll. T. B. Wilson; tj^^pe now in coll. 

 Acad. Nat. Sci. Phila.).— Cabanis, Joimi. fiir Orn., 1861, 254 (Costa Rica).— 

 Salvin, Proc. Zool. Soc. Lond., 1867, 150 (Cordillera de Tole and Cordillera 

 de Chiriqui, Panama; Turrialba, Costa Rica; crit.); 1870, 201 (Calovevora and 

 Calobre, Panama). — Lawrence, Ann. Lye. N. Y., ix, 1868, 117 (Dota Mts., 

 Angostura, and San Jose, Costa Rica). — Frantzius, Journ. fiir Orn., 1869, 

 310 (Costa Rica).— Boucard, Proc. Zool. Soc. Lond., 1878, 66 (San Carlos 

 and Volcan de Irazu, up to 10,000 ft., Costa Rica; habits). — Sclater, Cat. 

 Birds Brit. Mus., xiv, 1888, 400 (Turrialba, Costa Rica; Cordillera de Tole 

 and Calovevora, Panama). — Salvin and Godman, Biol. Centr.-Am., Aves, 

 ii, 1891, 145.— Ban(;s, Proc. New Engl. Zool. Club, iii, 1902, 51 (Boquete, 

 Panama, 4,000 to 6.000 ft.).— Ridgway, Condor, vii, 1905, 156. in text (Bonilla. 

 Costa Rica). 



C[ephaloptents] glabricollis Cabanis and Heine, Mus. Hein., ii, 1859, 110, foot- 

 note. 



[Cephalopterus] glabricollis Gray, Hand-list, i, 1869, 375, no. 5683. — Sclatei{ and 

 Salvin, Nom. Av. Neotr., 1873, 59. — Sharpe, Hand-list, iii, 1901, 177. 



« One specimen. b Four specimens, c Five specimens. 



