RENDAHL, BIRDS FROM THE PEARL ISLANDS. 23 



was accepted by Salvin and Godman, who also speak of its 

 appearance in Costa Rica and apparently in addition to these 

 authors, Thayer and Bångs name the birds coUected in San 

 Miguel A. cajanea chiricote. Berlepsch and Hartest, how- 

 ever, in their paper «0n the birds of the Orinoco region» 

 (Nov. Zool. IX, 1902, 128) state, that they do not under- 

 stand the difference between A. cajanea (Mull.) and A. chiri- 

 cote (ViEiLL.) as pointed out by Dr. Sharpe; the geographical 

 distribution as given in C a t. B. being evidently overlapping. 

 The birds from the Orinoco, referred in the quoted paper 

 to A. cajanea, are said to ha ve the pileum ashy grey, slightly 

 tinged with brown on the occiput. Ihering (Cat. da Faun. 

 Braz. Vol. I. As avos do Brazil. Säo Paulo 1907) includes 

 in his catalogue both species, giving the distribution of A. ca- 

 janea as S. Paulo, R. d. Janeiro, Minas Geraes, Måtto Grosso, 

 Bahia, Para, Guyana, Peru, Colombia, Panama, and of A. c. 

 chiricote as Paraguay, R. Gr. do Sul, Paranå. Miss Snethlage 

 (Cat. Av. Amaz. 1914) states the bird of the Amazonia be- 

 longing to A. cajanea. Carriker ref ers (Ann. Carn. Nat. 

 Mus. VI, 1910) the Costa Rican birds to A. cajanea. 



In consequence of what is quoted above I think there are 

 no reasons for referring the Panaman birds to chiricote, but 

 they are certainly to be included in A. cajanea, which arrange- 

 ment I ha ve followed here. 



Thayer and Bångs state about the specimens collected 

 by Brown in San Miguel, that they, when compared with a 

 series from Panama and Chiriqui, are paler below, and in 

 average smaller, but that this apparent difference on account 

 of the great individual variation in both series, might not 

 hold good if further material was measured. 



The present specimen has, when compared with a speci- 

 men from Bahia, Brazil, and another from Surinam, the 

 chestnut colour of under parts paler. Also the colour of head 

 and neck is decidedly , paler. It is, however, on account of 

 the relatively weak toes probable that the bird not yet being 

 an adult, and being only in a transitory plumage, consequently 

 lacks the perfect coloration of the adult. 



The measurements are: 



wing 179, tarsus 67, exposed culmen 48. 



