EFFECTS OF LOCALITY ON COLOUR. 263 



coloured parrot (Chrysotis augusta) corresponding to 

 the large and richly- coloured butterfly (Papilio 

 homerus) of Jamaica. 



The Andaman Islands are equally remarkable, at least 

 six of the peculiar birds differing from their continental 

 allies in being much lighter, and sometimes with a large 

 quantity of pure white in the plumage, 1 exactly corre- 

 sponding to what occurs among the butterflies. 



In the Philippines this is not so marked a feature ; 

 yet we have here the only known white-breasted king- 

 crow (Dicrurus mirabilis) ; the newly discovered Eury- 

 Icemus steerii, wholly white beneath ; three species of 

 Diceum, all white beneath ; several species of Parus, 

 largely white-spotted ; while many of the pigeons have 

 light ashy tints. The birds generally, however, have 

 rich dark colours, similar to those which prevail among 

 the butterflies. 



In Celebes we have a swallow-shrike and a peculiar 

 small crow allied to the jackdaw, 2 whiter than any of 

 their allies in the surrounding islands ; but otherwise 

 the colours of the birds call for no special remark. 



In Timor and Flores we have white-headed pigeons, 3 

 and a long- tailed flycatcher almost entirely white. 4 



In Duke-of-York Island east of New Guinea we find 

 that the four new species figured in the " Proceedings of 

 the Zoological Society," for 1877, are all remarkable for 

 the unusual quantity of white in their plumage. They 

 consist of a flycatcher, a diceum, a wood-swallow, and 



1 Kittacincla albiventris, Geocichla albigularis, Sturnia andamanensis, 

 Hyloterpe grisola var., lanthcenas palumboides, Osrnotreron chloroptera. 



2 Artamus monachus, Corvus advena. 



3 Plilopus cinctus, P. albocinctus. * Tchitrea affinin, var. 



