522 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



tips; sides of head (including superciliary stripe), and entire under 

 parts rich lemon or gamboge yellow, the chest and sides streaked with 

 pale chestnut or cinnamon-rufous; maxilla black, with paler tomia; 

 mandible dusky grayish (bluish graj' in life?); legs and feet horn 

 brownish (in dried skins); length (skins), n7-132 (123.7); wing, 62-67 

 (65.4); tail 4:7-56 (50.3); exposed culmen, 11-13 (11.7); tarsus, 21-22 

 (21.5); middle toe, 12.^ 



Adult female. — Above plain olive-green, including pileum; wings 

 and tail as in adult male but yellowish edgings much less distinct; 

 superciliary stripe and under parts plain gamboge yellow, paler and 

 duller than in adult male; length (skins), 125-129 (127); wing, 60-64 

 (61.3); tail, 4.5-49 (47); exposed culmen, 11-12 (11.3); tarsus, 18-30 

 (19); middle toe, 14.' 



Immature male. — Similar to adult female but chest and sides faintly 

 streaked with pale chestnut, hindneck and sides of neck gray, chin and 

 throat whitish, and yellowish wing-edgings more distinct. 



Younger (?) ifiale. — Pileum, hindneck, and sides of neck gray, the 

 crown tinged with olive-green; rest of upper parts as in plumage last 

 described above, but yellowish wing-edgings less distinct; under 

 parts dull white, tinged with pale yellow on flanks, lower abdomen, 

 and under tail-coverts, and with pale gray on sides of chest. 



Galapagos Archipelago (Albemarle, Duncan, Charles, Hood, Chat- 

 ham, Barrington, Indefatigable, Jervis, James, Tower, Bindloe, and 

 Abingdon islands); Cocos Island, off Bay of Panama; Gorgona Island, 

 Bay of Panama?;^ coast of Ecuador (Guayaquil)?;" coast of Peru 

 (Santa Lucia; Tumbez)?'' 



Sylvicola aureola Gould, Zool. Voy. Beagle, iii, Birds, 1841, 86, pi. 28 (Galapagos 

 Archipelago). — Bonaparte, Consp. Av., i, 1850, 309. 



Dendroica aureola Cassin, Proc. Acad. Nat. Sci. Phila., 1860, 192. — Baird, Review, 

 1865, 194, footnote.— Ridgway, Proc. U. S. Nat. Mus., xii, 1889, 105, 119, 121, 

 122, 123, 124, 125, 126 (Indefatigable, Charles, James, and Chatham islands).— 

 TowNSEND, Bull. Mus. Comp. Zool., xxvii, 1895, 122 (Cocos Island).— Roths- 

 child and Hartert, Novit. Zool., vi, 1899, 147 (Culpepper, Wenman, 

 Abingdon, Bindloe, Tower, Albemarle, Narborough, James, Jervis, Duncan, 

 Indefatigable, Chatham, Charles, Gardner, and Hood islands). 



Dendrceca aureola Sclater and Salvin, Proc. Zool. Soc. 1870, 323 (Indefatigable, 

 Bindloe, and Abingdon islands). — Salvin, Trans. Zool. Soc. Lond., ix, pt 

 ix, 1876, 473 (Indefatigable, Bindloe, and Abingdon islands); Proc. Zool. 

 Soc. Lond., 1883, 420 (Charles Island).— Sharpe, Proc. Zool. Soc. Lond., 

 1877, 66 (Charles Island); Oat. Birds Brit. Mus., x, 1885, 282 (Inde- 

 fatigable, Charles, and Abingdon islands; Gorgona Island, Panama Bay; 

 Ecuador; Peru).— Coues, Birds Col. Val., 1878, 256, footnote (synonymy).— 

 Taczanovpski, Orn. du Perou, i, 1884, 467 (Santa Lucia and Tumbez, w. 

 Peru).- Salvadori and Festa, Boll. Mus. Zool., etc., Torino, xv, 1899, 8 

 (Savana de Guayaquil, Estero Carnero, Puntillo, and Santa Elena, w. 

 Ecuador; crit.) . 



' Ten specimens. 



'' Three specimens. 



' No specimens seen by me from these localities. 



