(248 ) 



F. cincrascens the chest is ashy grey, the abdomen white or whitish. The iris is 

 very deep brown, feet and bill black. The female differs from that of P. cinerascens 

 also in the browner npperside and more reddish buff underside. Its iris is dark 

 brown, liill and feet black. The young bird has a brownish bill, and nmch wider 

 blackish shaft-stri]>es than the iiAnM fe male, on a whitish bnff underside. The 

 dimensions are those of P. cinerascens. 



c? ad., Toeal, Little Key, 11. xi. b-^O?. (H. Kulin coll.. No. 2s:.) Type of 

 1'. huelnii. 



$ ad., Toeal, October 1897. (H. Kiihn coll., No. 193.) 



? juv., Toeal, 10. ix. 1897. (H. Kiihn coll.. No. 82.) 



S ad., Toeal, 24. viii. 1897. (H. Kiihn coll.. No. 13.) 



? in moult, Toeal, 22. viii. 1897. (H. Kiihn coll., No. 50.) 



1 (?, 2 ? ?, Toeal, December 1897. (H. Kiihu coll., Nos. 386, 469, 495.) 



118. Pachycepliala tianduana Hart. 



Pachycephala thmhimia Hartert, Bull. B. 0. C/iih xi. p. 53 (March 1!)01 : Tiandu, west of the 

 Key Islands). 



This very interesting form of Pachjccphala belongs to the same group as 

 P. leucogaster, arctitorquis, and mceki. I have no doubt that they should in future 

 all be treated as subspecies of one species, but at present the Tring Museum possesses 

 no specimen of P. leucogaster, the first-named form of this group, which I have 

 only been able to compare in the British Museum. Before I have a better series of 

 the latter, and have studied it more closely, I refrain from using trinomials for this 

 group, and as their habitats are far separated no harm can arise from this. 



The male of my P. tianduana resembles that of P. meehi (from Rossel Island), 

 but differs in its slightly paler upperside, longer wing, cream-coloured abdomen, 

 and more slaty, less deep black tail. It diifers from the male of P. arctitorquis 

 (from Tenimbor and Dammer) in the much darker colour of the npperside, wider 

 black pectoral crescent, and darker tail. The sides of the breast are light grey, 

 slightly tinged with butf, not so grey as in P. mee/d, aud not white as in 

 P. arctitorquis. 



The tYTCi females are worn, and apparently both immature. They differ widely 

 from those of P. meeki in being brownish, not ashy greyish, above and on the tail, 

 and in being whitish buff or buffy white, instead of rusty-buif, underneath. The 

 female of P. arctitorquis differs still more, being above brownish cinnamon or 

 cinnamomeons ashy, and underneath generally less striated. As all the males are 

 worn or moulting, the females apparently both immature, exact measurements 

 cannot be given, but the wing of the male is at least 80 mm. long. 



Mr. Heinrich Kiihn sent the following specimens : 



2 S ad., Tiandu, 19. xii. 1900. "Iris brownish red, bill black, feet dark 

 plumbeous." (Nos. a, type of the name tianduana, n.) Both in splendid 

 freshly-moulted plumage, wings still in moult. 



1 S ad., Tiandu, 19. xii. 1900, in quite worn plumage, moult only just 

 beginning. (No. c.) 



1 ? (apparently young), Heuiar islet, Tiandu Islands, 17. vii. 1899. "Iris 

 dark brown, bill plumbeous, feet greyish black." (No. 1307.) 



1 ?, Tiandu, 18. xii. 1900. Apparently not cjuite adult. (No. d.) 



