86 REVIEW OF THE 
amongst which the type of the species, convinced me 
that the first really belongs to a new, hitherto overlooked 
species. 
49, Rhipidura threnothorax Mill. & Schleg. 
Rhipidura threnothoraz Mill. & Schleg. Verh. Land- en Volkenk. 
p. 185 (1839—44); Meyer, Sitzb. k. Akad. d. Wiss. Wien, 
LXIX, p. 212 (1874); Sharpe, Cat. B. Br. Mus. IV, p. 325 
(1879); Salvad. Orn. Pap. II, p. 54 (1881). 
Rhipidura fumosa Schleg. Ned. Tijdschr. voor de Dierk. IV, p. 42 
(1873); Salvad. Orn. Pap. II, p. 56 (1881). ( 
Rhipidura ambusta Ramsay (teste Sharpe and Salvadori). 
This species, with which I unite, in accordance with 
Dr. Sharpe, A. fumosa Schleg., is easily distinguished from 
all its congeners with white-spotted breast by its uniform 
sooty black tail. I have before me a series of five speci- 
mens, each in a different dress, which, as I think, we 
have to consider as so many different stages of age, of 
which it will be useful to give here a short description. 
a. First stage: Young female from Jobi, collected 
by von Rosenberg, April 23rd 1869 (type of R. fumosa 
Schleg.). Above dark olive-brown, hind neck, mantle and 
back strongly tinged with rusty, rump, upper tail-coverts, 
abdomen, vent, thighs, under tail-coverts and tail sooty 
black; wing-coverts and quills dark smoky brown, under 
wing-coverts somewhat paler; chin, throat and a super- 
ciliary stripe white; chest, breast and flanks pale olive- 
brown, the upper chest with numerous hidden, small 
whitish spots, which, I think, will be the beginnings of 
the larger and purer white spots of the more developed 
stages of plumage. The bill is also showing a mark of 
immaturity, the lower mandible being white with a par- 
tially black tip, while it is, as a rule, pure white in the 
adult bird. The upper mandible as well as the feet are 
in all stages blackish brown. The wing, compared with 
the more advanced stages, is very short, measuring only 
1 em, tail 9, tarsus 2,1, culmen 1,5. 
This or a perhaps somewhat more advanced stage is 
Notes from the Leyden Museum, Vol. XV. 
