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MR. D. G. ELLIOT ON THE GENUS PTILOPUS. [May 7, 



opposed : distinguished from Treron (with which it constitutes the 

 subfamily Treroninee) by not possessing the scallop on the inner web 

 of the third primary. 



Ptilopus is well placed between Treron and Carpophaga, leading 



Fig. 2. 



Ptilopus iogaster. Celebes. 

 First primary only narrowing slightly ; tarsus partly bare. 



Fig. 3. 



Ptilopus fasciatus. Upolu, Samoa. 

 First primary abruptly attenuated ; tarsus partly bare. 



up to the latter genus through the different races of Ptilopus 

 magnificus. It is the absence of the scallop on the third primary 

 which is the chief distinction between Ptilopus and Treron. To any 

 one who will study this group with ample materials, such as has 

 fortunately been at my disposal, I think the difficulty, nay, impossi- 

 bility, of discovering any trenchant generic characters will be readily 

 acknowledged. Those who have had but a few species before them, 

 represented by two or three individuals of each, might easily imagine 

 that some one character of those which I have mentioned is really 



