BIRDS. 103 



8. Geospiza dubia. Gould. 



G. (Fcem. Mas ignot.) snmmo capite et corpore supra fuse is, singulis plumis cinera- 

 scenti-olivaceo marginatis ; strigd superciliari, genis, gutture, corpoi'e infra cinera- 

 scenti-olivaceis, singulis plumis notd centrali fused ; alis caiicldque brunneis singulis 

 plumis olivaceo-cinereo marginatis ; rostra sordicU alba, pedibus obscurhfxtscis. 



Long. tot. 3f unc. ; alec, 2| ; caudw, 1 1 ; tarsi, \ ; rostri, § : alt. rostri, |. 



Upper surface fuscous, with each feather margined with cinereous olive ; the 

 streak above the eye, cheeks, throat, and beneath the body, cinereous olive, 

 with the middle of each feather fuscous ; the wings and tail brown, with each 

 feather margined with cinereous ash ; the bill white, and the feet obscure 

 fuscous. 

 Habitat, Galapagos Archipelago, (Chatham Island.) 



Sub-Genus.— CAMARHYNCHUS. Gould. 

 Camarhynchus dijfert a genere Geospiza, rostra debiliore, margine mandibulce supe- 

 rioris miniis indentata ; cuhnine ininiis elevato in frontem et plus arcuato ; lateribus 

 tumidioribus ; mandibuld inferiore mi?ius in genas tendente. 

 Camarhynchus psittaculus is the typical species. 



1. Camarhynchus psittaculus. Gould. 



Plate XL. 

 C. (Fcem.) summa capite corporeque siqieriore fuscis ; alis cauddque abscurioribus ; 

 gutture corporeque inferiore, cinerascenti-albis, straminea tinctis ; rostro pallide 

 flavescentifusco ; pedibus fuscis. 



Long. tot. 4f unc. ; alw, 2f : caudw, 1| ; tarsi, | ; rostri g ; alt. rostri, J. 



The upper part of the head and body fuscous ; the wing and tail darker ; the 

 throat, and beneath the body cinereous white, tinged with straw-colour ; 

 the bill pale yellowish fuscous, and the feet fuscous. 

 Habitat, Galapagos Archipelago, (James' Island.) 



The species of Camarhynchus do not differ in habits from those of Geospiza ; 

 and the C. psittaculus might often be seen mingled in considerable numbers in the 

 same flock with the latter. Mr. Bynoe procured a blackish specimen, which, 

 doubtless, was an old male ; I saw several somewhat dusky, especially about 

 the head. 



2. Camarhynchus crassirostris. Gould. 



Plate XLI. 

 C. (Mas jun.et Fcem.) corpore superiore intensh brunneo, singulis plumis cinerascenti- 



