island of Basilan, the colouring of the frontal feathers is the same as in C. aurora, and the front 

 of the chest is slightly shaded with orange ; while another adult in the same collection, killed in 

 May, has no metallic lustre on the forehead, and no orange shade on the chest. 



The specimens of C. jugularis from Zebu appear generally to have the front half of the chest 

 shaded with orange ; and more rarely the frontal feathers are slightly tipped with steel-blue. At 

 the base of the metallic throat many specimens of C. jugularis have two or three maroon feathers ; 

 but this is not a constant character, even in specimens from the same island ; so it will be seen 

 that C. jugularis goes through certain modifications of plumage which more or less approach the 

 coloration of C. aurora. What may be the true limits of these variations I am unable at present 

 to determine ; but possibly future discovery will prove C. aurora to be included within these 

 limits. 



The present form has been described as a distinct species by the Marquis of Tweeddale from 

 two specimens — an adult male and female collected by Mr. Everett at Puerta Princesa, on the 

 island of Palawan, respectively on the 30th of November and the 1st of January ; and from the 

 labels attached to them I have taken the colouring of the bill, irides, and legs. 



By a lapsus calami, Lord Tweeddale has given the irides in the male as " deep crimson ;" the 

 label, however, gives them as deep brown. I have been unable to distinguish the difference in 

 size between the sexes which Lord Tweeddale's measurements would seem to indicate. 



I have here to thank the Marquis of Tweeddale for the loan of the original specimens, the 

 male of which I have here figured on the same Plate as C. flagrans. 



