BIRDS. 17 



2f>. Pachycephala ruiiventris (Lath.). 

 Gadow, i . c, p. 208; Ramsay, t. c. p. L81. 



a. d . Port Darwin, October 1881. 



b. <$ . Port Darwin. October 1881. 



c. 2 • Port Molle, May 3, 1881. 



26. Ciiuiyris frenata {Mull.). 

 Gadow, Cat. B. Brit. Mas. ix. p. 85 ; Ramsay, t. c. p. 191. 



a. tf . Prince of Wales Island, Aug. 1881. 



b. c. d ? ■ Thursday Island, July 11, 1881. 



27. Myzomela obscura, Gould. 

 Gadow, t. c. p. 143 ; Ramsay, t. c. p. 190. 



a, b. rf . Thursday Island, Aug. 1881. 



c. $. Thursday Island, Aug. 1881. 



The following are the measurements of the sexes : — 



I may supplement .Dr. Gadow's description of this species by re- 

 marking that there are two distinct shades of colour observable in 

 a series of the present species, the birds from Port Darwin and 

 "Northern Territory " (ex Gould Coll.) being more mouse-coloured, 

 and this is the form which is seen in South-eastern Xew Guinea. 

 The specimens from Queensland, Cape York, and the islands of Torres 

 Straits are browner, sometimes inclining to rusty brown. Another 

 character which Dr. Gadow omits to mention is the blackish shade 

 in the centre of the throat ; it is apparently a mark of an adult 

 bird, and is not confined to one sex, but appears to be equally 

 distinct in the female. 



28. Zosterops albiventer, Eekhenb. 



Sharpe, Cat. B. Brit. Mas. ix. p. 164. 

 Zosterops flavogtdaris, Ramsay, t. c. p. 191. 



a. $ . West Island, Torres Straits, Sept. 1881. Iris greyish 

 brown ; bill dark brown ; legs and feet greyish brown. 



.. This species is very rarely seen in collections, and was for a long 

 time known only from the figure in the ' Voyage au Pole Sud.' It 

 was originally described from Warrior Island in Torres Straits, and 

 appears to be a recognizable species. It seems to be the Z.jlavi- 

 gularis of Masters (Proc. Linn. Soc. N. S. W. i. p. 56), described from 



c 



