34. TAN'YGXATIUS. 431 



Thes. Orn. ii. p. 7-"> (1875); Lenz, Jouru. f. Orn. 1877, p. 361; 

 Rosenb. Malay. Arehip. p. 275 (1878). 

 Eclectus albirostris, Rosenb. Malay. Arehip. p. 275 (1878). 



Adult. Head green ; neck, interscapular region, scapulars, and 

 underparts yellowish green ; lower back and uropygium blue ; 

 upper tail-coverts green, slightly edged with blue ; wings green, 

 smaller upper wing-coverts and primary wing-coverts edged with 

 blue, median and greater upper wing- coverts edged with yellowish 

 green ; under wing-coverts yellowish green ; tail above green with 

 the tip yellowish, underneath golden olive-yellow : bill red ; feet 

 olive-green ; iris white-yellow. Total length 13-5 inches, wing 8, 

 tail 5, bill 1-25, tarsus 0-65. 



Youny. Interscapular region and scapulars green like the wings ; 

 no blue edges, or rarely any, to the small upper wing-coverts : 

 " iris yellowish white ; bill horny white with a flesh tinge tip 

 dusky- feet dull olive" (A. It. Wallace). 



Uab. Celebes ; and perhaps is the same bird which lives in the 

 Sula Islands and also in the Sanghir Islands. 



I think the question regarding the white-billed birds (Tany- 

 gnathus albirostris, Wall.) must be settled according to Dr. Meyer's 

 views, and that they must be considered young birds. It is an 

 undoubted fact that in the allied species also, T. everctti and 

 T. burbidtjei, red-billed birds occur, which have all the appear- 

 ance of being fully adult, and also white-billed ones, which are 

 certainly young ; so that I have not the least doubt that the same 

 observation holds good for T. mulleri, although some white-billed 

 specimens living in confinement, as shown by Mr. Sclater (P. Z. S. 

 1871, p. 49-1), retain their white bill for a longer or shorter period. 

 Dr. Finsch assures us that he has seen living examples in the 

 Amsterdam Zoological Gardens with the white bill changing to a red 

 colour. A specimen at present living in the aviary of the Zoological 

 Society's Gardens in London, which was registered as T. albirostris 

 on account of its white bill, has it now red. 



The only bird from the Sula Islands in the Pritish Museum has 

 a white bill and the feathers of a dark green. Also a single spe- 

 cimen from Sanghir Islands, witli a red bill, is remarkable for being 

 much larger than those from Celebes, although apparently not fully 

 adult, as the interscapular region is green with no yellow tinge ; 

 wing 8'8 inches, tail 55. 



a, l>, c. cJ ad. et Makassar, Celebes. Wallace Coll. 



inuu. sk. 



d. 2 num. sk. Makassar, Celebes. Wallace Coll. 



(Type of T. albirostris, Wall.) 



e. Ad. sk. Menado, Celebes (A. Ii. Wallace). Gould Coll. 

 f,g,h. Ad. et Celebes. IVeeddale Coll. 



inuu. sk. 

 t. 5 innn. sk. Sula Islands. Wallace Coll. 



1: Imm. sk. Sanghir Island. Tweeddale Coll. 



/. Skeleton. Celebes. Zoological Society 



P. . 

 in. Skeleton. Celebes. Purchased. 



