356 



SNODGRASS AND HELLER 



74^. CERTHIDEA CINERASCENS BIFASCIATA (Ridgway). 



Certhidea bifasciata Ridgway, Proc. U. S. Nat. Mus., xvii, p. 359, 1894 

 (Barrington Island), and xix, p. 304, 1896; Bull. U. S. Nat. Mus., No. 

 50, Pt. II, p. 768,. 1902. 



Certhidea cinerascens bifasciata Rothschild and Hartert, Novit. Zool., 

 VI, p. 151, 1899. 



Range. — Barrington. 



This form is similar to the last but is paler above and below, almost 

 whitish below with a faint tinge of buff, and with a distinct olive tone 

 above. The tips of the middle and greater wing coverts are specially 

 pale in some specimens forming two fairly well marked bands on the 

 wing. 



This form was very numerous on Barrington in May. The young 

 birds, as did those on Hood, remained banded together in small flocks, 

 flying about in troops from one bush to another, continually uttering 

 short chtp-YxVA notes. 



We have two adult males and two adult females taken on Barring- 

 ton in May. 



MEASUREMENTS OF ADULT SPECIMENS OF Certhidea 



cinerascens bifasciata. 



Genus Dendroica Gould. 

 Dendroica GRAY, List Gen. Birds, App. iii, p. 8, 1842. 



75. DENDROICA PETECHIA AUREOLA (Gould). 



Sylvicola aureola Gould, Zool. Voy. Beagle, in. Birds, p. 86, pi. 28, 1841. 



Dendroica aureola Sclater and Salvin, Proc. Zool. Soc. Lond. ,p. 323, 

 1870. — Ridgway, Proc. U. S. Nat. Mus., xix, p. 493, 1896. — Roths- 

 child and Hartert, Novit. Zool., vi, p. 147, 1899. 



Dendroica petechia aureola Ridgway, Bull. U. S. Nat. Mus., No. 50, Pt. 11, 

 p. 521, 1902. 



Range. — Coast of Ecuador and Peru, Cocos and Gorgona Islands 

 and every island of the Galapagos Archipelago. 



We found this species generally distributed on all the islands from 

 sea level to the tops of the highest mountains. It was most abundant 



