326 



BULLETIN" 50, UNITED STATES NATIOISTAL MUSEUM. 



with sulphur yellow; bill bluish gray or bluish horn color, darker 

 terminally; eyelids dusky; iris brownish red, chestnut, or carmine; 

 legs and feet olive-green to grayish olive in life, with soles of toes 

 olive-yellowish; length (skins), 167-182 (174); wing, 84-92.5 (88.5); 

 tail, 59-66.5 (62.5); exposed culmen, 17-19.5 (18.5); tarsus, 25-28 

 (26.9); outer anterior toe, 17.5-19 (18.6) « 



Adult female. — Similar to the adult male but without any glossy 

 black nuchal tuft; length (skins), 159-182 (170); wing, 82.5-91.5 

 (85.5); tail, 56-63 (60.3); exposed culmen, 16.5-19 (17.5); tarsus, 

 24.5-28 (25.6); outer anterior toe, 16-18.5 (17.4).* 



Young male. — Similar to the adult male but without any bluish 

 gray patch on sides of breast and with the glossy black nuchal tuft 

 much smaller. 



Young female. — Similar to the young male but without trace of 

 the black nuchal tuft. 



Highlands of Costa Rica (Barranca, Volcan de Po^s; Burgos and 

 El Roble, Volcan de Irazti; Volcan de Turrialba; Cervantes, Birris, 

 Navarro, La Estrella, and Azahar, Cartago; La Palma de San Jose; 

 Peorsnada; Coliblanco; Carrillo; La Hondura; Tapoto; Rancho 

 Redondo; Quebrada Honda; Cariblanco de Sarapiqui) and western 

 Panama (Boquete, Boqueron, Loma Llena). 



Tetragonops frantzii Sclater, Ibis, Oct., 1864, 371, pi. 10 (Costa Rica;c coll. 

 U. S. Nat. Mus.). — Frantzius, Ibis, 1865, 551 (Turrialba near Birris or 

 Cervantes, Costa Rica; note); Joum. fiir Orn., 1869, 363 (Costa Rica). — 

 Lawrence, Ann. Lye. N. Y., ix, 1868, 87, 130 (San Jos^, La Palma de San 

 Jos6, Cervantes, Navarro, and Birris, Costa Rica; crit.). — Gray, List Birds 

 Brit. Mus., Capit., 1868, 19. — Marshall, Mon. Capitonidse, 1871, 3, pi. 2. — 

 BoucARD, Proc. Zool. Soc. Lond., 1878, 47 (Navarro, Costa Rica). — Shelley, 

 Cat. Birds Brit. Mus., xix, 1891, 121 (Navarro and Volcan de Irazu, Costa 

 Rica; Veragua). — Zeledon, Anal. Mus. Nac. Costa Rica, i, 1887, 123 (Cer- 

 vantes de Cartago and Rancho Redondo, Costa Rica). — Salvin and Godman, 

 Biol. Centr.-Am., Aves, ii, 1896, 550 (Birris, Rancho Redondo, La Palma 

 de San Jos6, Volcan de Irazii, Navarro, Quebrada Honda, Cervantes de 

 Cartago, and San Jos6, Costa Rica; Veragua). — Bangs, Proc. New Engl. 

 Zool. Club, iii, 1902, 32 (Boquete, etc., Chiriqui, Panama, 4,000-7,000 ft.). 



o Sixteen specimens. 

 & Fourteen specimens. 



cType said to be from "near San Jos6." 



.ill 



