188 



neek disconuecfced by yellow — one adult male from Celebes, a second 

 from Amboyna, and a third from Obi. In all the other birds from 

 Sula, Bouru, and Ceram, where P. macrorliyncha and not P. mela- 

 nura is said to occur, the black is continuous, although sometimes 

 limited to only a few black feathers on the sides of the neck. 



3. The colour of the upper tail-coverts is of no specific import- 

 ance as Wallace thought when he named his birds from the 8ula 

 and Bouru Islands P. clio, because in the collection of the British 

 Museum there are now several specimens from these islands 

 which have the upper tail-coverts black and broadly margined 

 with olive, or even the whole terminal half of the feathers olive. 

 The same remark applies to specimens from other islands ; for in- 

 stance, in the very specimen which has the crescent separated from 

 the black of the head by yellow, the upper tail-coverts are more 

 olive-yellow than black. As all the birds with " olive upper tail- 

 coverts " have every tail-feather more or less narrowly tipped with 

 yellowish brown (the same colour as the whole tail in youug birds), 

 we might suppose that the appearance of olive on the upper tail- 

 coverts is a case of a retention of the young plumage. 



4. The bill varies considerably in length and strength. 



Hab. From the Moluccas to New Guinea and the Louisiade archi- 

 pelago, New Britain, and adjacent islands, as well as jVorthem 

 Australia. 



a. S juv. sk. 



b. Ad. sk. 



c. J juv. sk. 



d. cJ ad. sk. 



e. S ad. sk. 



/. S ad. sk. 

 ff. S ad. sk. 

 h, i. d ad. sk. 



A:, I. S ad. sk. 



m, n. S ad. sk. 

 o. 2 juv. sk. 

 p. c? ad. sk. 



q, r. S 5 ad. sk. 



s. S juv. sk. 



t, u. S ad. sk. 



V, 10, X. $ ad. sk. 



y. $ juv. sk. 



z. S ad. sk. 



Somerset, Cape York. 

 Cape York (Cockerelt). 



Booby Island, Torres Straits 

 {J. Murray). 



Booby Island, August 1881 

 {Dr. Coppinyer). 



West Island, September 

 1881 {Dr. Coppinger). 



Cairncross Island. 



Arden Island. 



Teste Island, Louisiade 

 archipelago. 



Palakiii'u Island, New Bri- 

 tain. 



Palakiiru Island. 



Palakiiru Island. 



Saibai, S.E. Guinea. 



Amboina. 



North Ceram. 



Bouru. 



Bouru. 



Boura. 



Obi, August 9, 1862. 



Gould Collection. 



F. D. Godman and 0. 

 Salvin, Esqrs. [P.]. 



Voy. of H.M.S.' Chal- 

 lenger.' 



Voy. of H.M.S. 

 ' Alert.' 



Vov. of H.M.S. 

 'Alert.' 



Capt. Stanley [P.]. 



Capt. Stanley [P.]. 



Sir J. Ingham [P.]. 



Eev. G. Brown [C.]. 



Rev. G. Bro^^Ti [C.]. 

 Rev. G. Brown [C.]. 

 Rev. J. Macfarlane 



[C.]. 

 A. R. Wallace, Esq. 



[C.]. 

 A. R. Wallace, Esq. 



[C.]. 

 A. R. Wallace, Esq. 



[C.]. 

 A. R. Wallace, Esq. 



[C.]. 

 A. R. W^aUace, Esq. 



[C.]. 

 Leiden Museum [P.]. 



