On some new Paradise-birds. 
23 7 
called structural characters makes it still more difficult for 
the student to perceive the true relationship of birds. 
5th. The differentiation of species in consequence of isola¬ 
tion, and the production of subspecific forms in consequence 
of semi-isolation, prove the great importance of interbreeding 
in preventing the indefinite multiplication of species. 
XXIX .—On some new Paradise-birds. 
By O. Finsch and A. B. Meyer* *. 
(Plate VII.) 
Amongst the collectors who at first founded and afterwards 
materially increased our knowledge of the zoology of South¬ 
eastern New Guinea, the principal credit is due to our 
fellow-countryman, Karl Hunstein, of Friedberg, in Hesse. 
A first-rate shot, collector, and observer, it was he who, 
after the failure of the gold-diggers' expedition (in the ranks 
of which he first visited New Guinea, seven years ago), in 
company with the well-known collector, Andrew Goldie, 
made several excursions into the same district of New 
Guinea and eastwards to Milne Bay and the d'Entrecasteaux 
Islands. In all these expeditions, which (although con¬ 
siderable collections of natural-history and ethnographical 
objects were made) had the main object of gold-prospecting, 
Hunstein, although his name has not hitherto been brought 
prominently forward, was the real collector f, and to him our 
thanks are due for the discovery of most of the new birds 
transmitted by Goldie to Australia and England. 
* [Translated, by permission of the authors, from their article in the 
‘ Zeitschrift fur die gesammte Ornithologie,’ 1885, Heft iv., entitled 
u Vogel von Neu-Guinea, zumeist aus den Alpenregion am Siidost- 
abhange des Owen-Stanley Gebirges (Hufeisengebirge, 7000-8000 f. 
hoch), gesammelt von Karl Hunstein,” part i.] 
t See Sharpe, Ann. Nat. Hist. (5) vi. p. 231 (1880); id. Journ. Linn. 
Soc., Zool. xvi. p. 423 (1883) ; Ramsay, Proc. Linn. Soc. N. S. W. viii. 
p. 15 (1883) et x. p. 242 (1885). Phonygama hunsteini , Sharpe (op. cit. 
p. 442), and Donacicola hunsteini , Finsch (Ibis, 1886, p. 1, pi. i.), are both 
named after Hunstein. 
