

know of two species of Sun-birds — C. comorensis, confined to the island of Joanna, and C. coquerelli 

 inhabiting the island of Mayotte. They both have the entire head, neck, and back metallic 

 green : in the former the abdomen is black, while in the latter it is yellow ; so that they belong 

 respectively to my " dark " and " pale " metallic groups. 



The present species differs from all its nearest allied forms by the scarlet pectoral tufts and 

 by the entire head and neck being uniform metallic green. Its natural position is between 

 C. bifasciatus and C. bouvieri ; from the former it is distinguished by the scarlet pectoral tufts, 

 and from the latter by the forehead and chin being of the same metallic green as the remainder 

 of the head and neck. 



It was first discovered by Dr. Peters during his short visit to the Comoro Islands ; and more 

 recently Mr. C. E. Bewsher collected six specimens on the island of Joanna, where it is, according 

 to his notes, very common, arid bears the native name of " Shetozee." " The nest," he states, 

 " is similar to those of others of the genus. The egg is greyish white, spotted and blotched, 

 especially at the larger end, with ashy brown." 



These specimens have been kindly lent to me by Professor Newton ; and I have described 

 and figured the adult male and female, and have also represented in the illustration the 

 immature male. These three specimens are now in the Cambridge Museum. 



