88 REVIEW OF THE 
nea. Similar to the former specimen, but the white spots 
on the black chest very much smaller, hardly two millimetres 
broad, and drop-shaped, very narrow at the base, beco- 
ming broader and round at the end, none of them cordi- 
form as in the preceding specimens. Some of these white 
drop-shaped spots are found, partially visible, partially 
hidden, on the ashy olive feathers of the breast. Lower 
mandible entirely white. Wing 8 cm., tail 8,6, tarsus 2,2, 
culmen 1,5. 
It is not without some hesitation that I unite this spe- 
cimen, the type of the species, with the four former ones, 
the difference in form and size of the white spots on the 
chest being so very striking; but on the other hand the 
large-spotted specimen, described above as the second 
stage, is found by S. Müller together with the small-spotted 
typical specimen, and considering, moreover, the fact that 
in the allied A. maculipectus the small and the large form 
of white spots are found in one and the same individual, 
it would be rather venturous to base a new species upon 
the difference in size of the white chest-spots only. 
The British Museum contains a specimen similar to 
stage four from Salwati, another from »New Guinea” and 
one from the Astrolabe Mountains, which latter is the form 
described as Zl. ambusta by Ramsay. 
50. Lhipidura rosenbergi, n. sp. 
A female, collected by von Rosenberg at Wonoembaai, 
Aru, agrees with the preceding species in the olive-brown 
upper surface, the uniform sooty black tail, the entirely 
white throat and the black, white-spotted chest, but dif- 
fers from it in having below the white throat the whole 
under surface sooty black, almost as intense as the chest, 
and not only is the chest, but also the breast, spotted 
with white. These two latter characteristics make it a 
near ally of R. maculipectus, from which it is, however, 
distinguished by the olive-brown upper surface, the uni- 
form black tail and the entirely white throat. 
INotes from the Leyden Museum, Vol. XV. 
