( 104 ) 



pecnliar, aud ajipeav to lie never described. They differ so ranch from tlie adnlt 

 birds that several ornithologists who saw them declared them without hesitation 

 to belong- to an unknown species. As we have five, in difterent stages, from the 

 mountains of British New Guinea, and oue from Arfak, and as there are several 

 from Artak in Leydeu, we were always inclined to consider them the young of 

 some species. .Some moulting specimens have now shown us that these birds are 

 without any doubt whatever the young females of F. s. schUgcUi aud P. sclilcyeln 

 obscurioi: In the lirst i)lumage these birds seem to be uniform cinnamon, with the 

 exception of the wings aud tail, which are blackish with olive-greenish or rnfous- 

 tinged edges. The olive-green feathers of the adult birds appear first on the back, 

 aud the abdomen becomes (through moult) rich yellow. Only the head, chest, and 

 some patches on the back and upper wing-coverts arc then cinnamon, and such 

 birds give to the casual observer the idea of a very fine unknown s})ecies of 

 Fachi/ccphala. The specimens that moult into the plumage of the adnlt are 

 evidently females, the crown becoming ashy-grey, the throat greyish with white 

 bars, the chest olivaceous-greenish. We cannot yet tell if the young male is (juite 

 similar to the young female or not. 



38. Pachycephala rufinucha rufinucha Scl. 



Varhyrephahi nifiiiurhii Sclater, P. Z. ,?. 1873. p. 002 (Hatam), 



1 3 ad., Hatam, September 1872. D'Albertis coll., No. 469. (Specimen a of 

 Salvadori's list, Oni. Pap. ii. p. 225.) 



Type of P. rufinucha ! 



2 (S3, Arfak. Bruiju coll. (Specimens c, r/ of Salvadori's list, I.e.) 

 1 ?, April 1S77, Karons. Laglaize coll.. No. 171. 



1 3 ad., Hatam, apparently from the Marchesa expedition. 



3"j. Pachycephala rufinucha gamblei liothschr 



Pachijcfphala r/ainlilri Rothscb., Bull. B. 0. Chih vii. [i. xxii, Dec. 1H'J7 (Mt. Cameron, 5U00 ft., 

 Anthony coll.). 



" S "ad. (probably 3), Mt. Cameron, oiMlii ft. A. S. Anthony coll. (Type 

 of r. gambh'i.) 



" ? " juu., Mt. Cameron, 7000 ft., 11. viii. 18!»fl. A. S. Anthony coll. 



1 c?, i ? ad., Kotoi district, Owen Stanley Range, 10,000—11,000 ft., August 

 18!)S. A. S. Anthony coll. 



1 jav., " Eafa district." Pnrchased in Loudon. 



1 without exact locality. Weiske coll. Purchased in London. 



2 ad., Aroa River. E. Weiske coll. 



1, Upper Brown River, between Mts. Astrolabe and Owen Stanley. Purchased 

 in London. 



I'dcli'ia'pliidii rufiiiucliii (jiimhU'i is closely allied to P. ruf. rufmachu, from 

 which it only differs in the following characters : 



The feathers of the forehead are whitish with ashy centres, while in P. r. 

 rufinucha they are uniform whitish grey, aud this light colour extends farther in 

 P. r. rufinucha, covering a space of nearly a centimetre, while in P. r. gamblei 

 only extending over an area of about ij mm. The chestnut nuchal patch is much 

 larger in adult I', r. gamblei, there is a grey chin-patch in P. r. gamblei which is 



