498 



BIUDS OF THE GALAPAGOS ARCHIPELAGO-RIDGWAY. vouxix. 



Birds of this genus were collected by Messrs. Baur and Adams on 

 Jervis and Duncan islands, but to what species they belong has not 

 been determined, since the specimens were among those lost at Guaya- 

 quil. 



ASCERTAINED RAXGK OK THE GEXUS CEKTHIDEA, GOULD. 



1. Cerihiden olirarea, Oonld. 



2. Certhidea salvini, Ridgway. 



3. Certhidea albemarlei, Ridgway. 



4. Certhidea luteola, Ridgway. 



5. Certhidea fitsca, Sclateraud Salvin. 



6. Cerihiden cincraaeens, Ridgway. 



7. Certhidea mentalis, Ridgway. 



8. Certhidea hifaaciaia, Ridgway. 



9. (Undetermined form.) 



CERTHIDEA OLIVACEA. Gould. 



Certhidea olivacea, Gould, Proc, Zool. Soc., Pt. v, 1837, p. 7 (Galapagos Islands) : 

 Zool. Voy. Beagle, III, Birds, 1841, p. 106, pi. XLiv (part: James Island). —Sal- 

 vin, Trans, Zool. Soc, IX, Pt. ix, 1876, p. 476 (part: James Island specs 

 only). — Sclater, Cat. Birds Brit. Mus., XI, 1886, p. 28 (part: James Island 

 only).— Ridgway, Proc. IJ. S. Nat. Mus., XII, 1889, pp. 105, 119, 123, 125 (part : 

 ■James Island). 



