626 
Birds of Celebes: Treronidae. 
have any near allies; perhaps it approaches Ducula [a Cai'pophagine grouj) 
ranging from India to the Sunda Islands] more than any other generic or sub- 
generic group; the long and nearly graduated tail is very conspicuous, also the 
under tail-coverts with dark centres”. The unusually long tarsal feathers, cover- 
ing the bone down to the base of the toes , is another peculiarity. Among 
Celebesian birds it resembles in some w’ays O. rosacea, which is distinguishable by 
its chestnut under tail-coverts and pale vinous head. 
In the Catalogue of the Pigeons”, 1893, Count Salvadori recog^nises 43 
species of the genus Carpophaga, forms varying of course very much in value, 
some being only well-marked local races, others very distinct. While maintaining, 
and amending where necessary, the subdivisions of Bonaparte and others. Count 
Salvadori does not pull this uniform body of Pigeons to pieces, but, by a 
considerate application of the term “subgenus”, he draws attention to the different 
groups of which the genus is composed and their relation to one another, using 
names indeed for signs, but not separating the groups under these names from 
Carpophaga. For this the student is grateful to the writer of the Catalogue; he 
sees at once that he has to do with a characteristic group of birds and soon 
becomes aware of the class of factors of which it is composed. 
Carpophaga ranges from India to the Solomons and Fiji, and, in point of 
number of species, Papuasia is the richest division of its range. In peculiar 
forms, however, the Island of Celebes and the Philippines are the best off. 
Count Salvadori finds indeed that three subgenera occur in Celebes, and a like 
number in Papuasia and in the Philippines, but his subgenus Zonophaps is a 
somewhat heterogeneous one and falls naturally into three groups, two of which 
occur in Celebes. I he following key shows the distribution of the subdivisions 
of Carpophaga-. 
Subgenera 
1 S. E. Asia 
Gt. Sundas 
Lr. Sundas 
1 
Philippines 
Celebes 
Moluccas 
•2 
1 
PM 
Polynesia 
Carpophaga 
* 
* 
* 
* 
* 
* 
* 
* 
Ptilocolpa 
* 
Zonophaps 
a. ( C. /brsfewi-type) 
* 
* 
h. [C. radiatar-t}p&) 
* 
* 
c. [C. basilicor-igpe) 
* 
* 
Ducula 
* 
* 
Cryptophaps 
* 
Zonoenas 
. 
• 
• 
* 
Under the circumstances it would not be safe, with our present knowledge, 
to attempt to trace the Carpophagine population of Celebes to a source in either 
the Indian or Papuan Zoological Regions; on the other hand, it appears as likely 
