470 BIRDS OF THE GALAPAGOS ARCHIPELAGO— RIDGWAY. 



Tlie brief notes which Dr. Baur has kindly sent me concernino- the col- 

 lections made at the two localities are as follows: 



East Albemarle opposite Cowley /^/and.— ('oiuiiosition of fauna ilirt'erent from that of 

 South Albemarle. har<;e (ieospiza^ absent; many black individuals of fortis and 

 fnliijinosa. 



Cactornix rare, only black specimens seen. 



Camar/n/nc/iHs, two species [^affinisnixAprostheiuelaii^; large form Irariefiatus^ absent. 



Nesomimus, Certhidea, Myiarchus, and Pyrocephalus present, bnt not common. 



South Albemarle. — Geospiza, three species Ifortis, fnliginosa, and a large form, 

 doubtle.ss either G. strenua or G. magniroatris — most likely the former]. 



Cactornis, two species, the largo blackish species [Geospiza fatiyataf] common. 

 [The other one is Camarh ynchus product iis.'\ 



Xesomimus Iparruhi-s] common. 



Certhidea. [albemarlei] comnion. 



Pyrovephalns [intercedens] common, but red males rare. 



Myiarchu.s [magnirostrixl common. 



Dendroica, Buteo, Paciloiietta. common. 



Sjjheuiscits, very common. 



As Dr. Baur, and his associate, Mr. Adams, collected more than forty 

 species on South Albemarle, there are at least twenty-tive species touud 

 there which are as yet unidentified. 



List of birds ascertained to occur on Duncan Island. 



o One of the so-called Cactorni, probably G. fatigata. 



b Perhaps C. affinis. 



' What this large species of Soutli Albemarle could have been, I can only conjecture ; 

 perhaps G. strenua, i)o8sibly G. magnirostris. 



