504 lUIlDS OF THE HALAl'ACOS ARCHIPELAGO— EIDGWAY 



CERTHIDEA MENTALIS, Ridgway. 



Certhidea inentatis, liiiKiWAY, I'loc. II. S. Nat. Mus., XVII, No. 1007, Nov. 1,^, 1894, 

 p. 3r)!( (Tower Island, Galiipa;:f08 Archipelago; collection of Dr. G. Baiir). 



Specific vhaructcfH. — Similar to C./iisca, Sclater and Salviii, oi" Ahiiijn 

 doii IsUukI, but ratlicr smaller, color darker and less olivaceous, the 

 under parts dull ligiii olive-grayish, becoming- ])ale bulty on cliiii and 

 under wing-coverts. 



Range. — (lalapagos xVrcbipelago: Tower Island (Baur and Adams;. 



Adult.— 'Yy\yit, No. .V.)!, colJeition of Dr. G. Baiir, Tower Island. Sep. 

 tember 'J, ISUI. Abov'e uniform deep grayisU olive; chin, throat, and 

 under wing-coverts i)ale butf, deepest on chin, that of thioat changing 

 gradually on chest to butty gray, which covers whole chest, upper 

 breast, sides, and Haidcs: belly dull whitish; under tail coverts buffy 

 white. An indistinct whitish supraloral streak. Wmg, 2.0"); tail, 

 1.58; exposed culinen, 0.4 0; tarsus, 0.80. 



There are live specimens in Dr. IJiiur's collection, one of which has 

 the under mandible apparently bUick, one dark brown, the other three 

 brownish white. 



CERTHIDEA BIFASCIATA, Ridgway. 



Crrthulea bi/ascialu, Ridovvav, I'roc. l'. S. Nat. Mus. XVII, No. 1007, Nov. l."«, 1S91. 

 p. 359 Barrnigtou Island, (ialapagos Archipelago; collection of Dr. G. Kaurj. 



Specific chardcters. — Most like (7. cinerascens, Ridgway, of Tlood 

 Island, but still whiter (entirely almost pure white) beneath, and wing 

 with two broad whitish bands across tips of greater and middle ccnerts. 



Raitf/c. — (Jaliipagos Archipelago: IJarrington Island (Baur and 

 Adams). 



Adult. — Type, No, oO.J, collection of Dr. (i. Baur, Barrington Ishind, 

 July 0, 1801. Above brownish gray, becoming very much i)aler ou the 

 rump; wings and tail dusky, the feathers broadly edged with grayish 

 brown; middle wing i^overts broadly tijtped with pale dull bulfy, and 

 greater coverts with dull white, producing two conspicuous bands 

 across the wing. Lores, orbits, cheeks, and entire under parts uniform 

 dull white. ni>per mandible tlark brown, edged with whitish: under 

 mandible whitisli; legs and feet brownish black. Length (skin ), .'i.lO; 

 wing,-; tail, 1. 10; exposed culmen, 0.40; tarsus, 0,78; middle toe, 0.48. 



Three specimens from Barrington Island agree in the above char- 

 acters. 



Family mBl'NDlNID.K. 

 Genus PROGNE, Boie. 



Progve, BoiK, Isis, 1S1'(). j). 971. 'lyi)e, llininihi jiiirpin-ea. JAuu;rus. = IT. fiiihis, 

 LinnieuB. 

 RtDK/c. — The whole of tem])erate and tropical America. Galapagos 

 Arciiipelago (one i)eculiar species). 



