Genus DUCULA. 



The genus DvcvJa differs from the last (Carpophaga) in having no 

 green or bronze on the upper-plumage, in having a comparatively longer 

 tail, and in having the inner primaries obhquely truncated at their ends , 

 so that the outer webs project beyond the shaft. The two genera are not 

 divided by either Salvadori or Sharpe, but the characteristics relied on, 

 consisting as they do not only of striking differences in type of 

 coloration, but also of differences in external structure, seem good 

 grounds for keeping the genera distinct. 



This genus contains but one species, Ducula insignis, with two 

 subspecies, griseicapilla and cuprea, which form geographical race,- to the 

 north-east and south respectively of the general range. 



Key to the Subspecies. 



A. Breast and abdomen pale ashy grey : 



a. Crown and hind-neck both lilac ... ... ... D. i. insignis. 



b. Crown grey contrasting with lilac hind-neck ... ...D. i. griseicapilla. 



B. Breast and abdomen lilac ... ... ... ... ... D. i. cuprea. 



H 2 



