342 
by other ornithologists as coming from the Molucca group, and also 
from the large neighbouring islands of Gilolo or Halmaheira, Ceram, 
Bouro or Bourou, &e., which, if taken collectively with the Moluccan 
species, will form the nucleus of an Ornithological Fauna (of upwards 
of 200 species) of what would be more properly designated the Spice 
Islands. 
I have been enabled by a very recent arrival from Gilolo and Ter- 
nate, to add to this list some twenty-seven additional species ; they 
are distinguished by an asterisk. 
FALCONID. 
Aaquita (HETEROPUs 2) GURNEYI. (Pl. CLXIX.) 
Immature.—Male. Hair brown, varied with buffy-white in the 
form of bars and streaks ; the head, neck, beneath the body, and tail- — 
coverts rufous-white, except on the breast and sides, which are ru- 
fous ; this latter colour is also sparingly displayed in patches on the 
head and neck; the lesser wing-coverts and scapulars irregularly 
banded with white; the greater wing-coverts, secondaries, tertials, 
and tail deep brown, banded irregularly with grey ; the primaries 
deep black. 
Mature bird probably brownish black, with indications of irre- 
gular greyish bands. 
Length 35" 6', wings 22" 3!", tail 16" 3'", bill from gape 2" 3!", 
Batchian Island (Wail. Coll.). 
This fine bird partakes of the form of Aquila malayensis, but it is 
larger and of a totally different colour. I have named this remark- 
able bird after J. H. Gurney, Esq., who is paying particular atten- 
tion to the group to which it belongs, and who possesses one of the 
finest series of them. 
*HartaEtus (CUNCUMA) LEUCOGASTER. 
Falco leucogaster, Gmel. S. N. i. p. 257. 
Halietus leucogaster, Gould. 
Gilolo (Wall. Coll.). 
HALIASTUR LEUCOSTERNUS, var. B.M. 
Haliaétus leucosternus, Gould, B. of Austr. i. pl. . 
Haliastur leucosternus, G. R. Gray, List of B. B.M. i. p. 13. 
Haliaétus (Ictinoaétus) leucosternon, Kaup. 
Batchian, Amboyna, and Ternate. 
Rather smaller in all its proportions to the Australian and Loui- 
siade specimens. 
BaZzA REINWARDTII. B.M. 
Falco (Lophotes) reinwardtii, Mill. & Schleg. Verh. Nederl. t. 5. 
Lophastur jerdoni, Bl. Journ. A. 8, B. xi. p. 464. 
Baza jerdoni, Bl. Cat. of B. p. 18. 
Baza reinwardtii, Bl. Cat. p. 317. 
