Birds of Celebes: Falconidae. 
15 
Urospizias hiogaster (1) Gurney, Ibis 1875, 365; id.. Diurn. B. of Prey 1884, 36. 
h. Astur tenuirostris (1) Briiggem., Abb. Yer. Bremen 1876, 43. 
j. Urospizias iogaster (1) Salvad., Orn. Pap. 1880, I, 47; (2) W. Bias. & Nehrk., Verb. 
z.-b. Ges. Wien 1882, 413; (3) Salvad., Agg. Orn. Pap. 1889, 18. 
k. Urospiza iogaster (1) W. Bias., J. f. 0. 1883, 151. 
For further synonyms and references see Salvador! y 7. 
Figures and descriptions. Ptombron.& Jacquinot 6 /; Scblegeld/J, d 1, d 3\ Kaup e i; 
Sbarpe y i, g 2\ Salvador! y 7; W. Blasius &Nebrkorny2. 
The absence of any exact locality for Briiggem an n’s Astur tenuirostris 
(the type-specimen now bears no original label at all) renders it impossible 
to decide at present whether A. tenuirostris is a new Celebesian species, or 
A. hiogaster in young plumage, or whether the bird is really an inhabitant of 
Celebes, or has been recorded from there owing to an erroneous label. Salva- 
dor! (O. P. I, 48) does not mention Celebes as a locality for hiogaster, and there- 
fore does not acknowledge Jacquinot and Pucheran or express an opinion 
on tenuirostris Briiggem. It is a priori not altogether likely that hiogaster of 
Ceram and Amboina should occur in Celebes, especially as an ally of hio- 
gaster, A. 'pallidice'ps Salvad., belongs to the intermediate island of Burn, and 
it always remains surprising that no other traveller obtained the bird in Celebes. 
V. Rosenberg himself sent only one specimen of hiogaster from Amboina to the 
lieyden Museum. 
GENUS UROSPIZIAS Kaup amended by Gumey. 
Hawks of rather small size, in structure hardly differing from Astur \ tail 
long, crossed with 8- — 24 bars (Kaup); tarsus rather long, the upper fourth 
feathered in front, toes moderate. About 20 local species, inhabiting Australia, 
Papuasia, the Moluccas, the Lesser Sunda Islands to Lombok, Polynesia as far 
as Fiji and the Mariannes. 
+ 6. UKOSPIZIAS TOKQUATUS (T emm.). 
Rufous-collared Hawk. 
a. Falco torquatus “Cuv.” (I) Temm., PL Col. Nrs. 43 ad., 93 juv. (1823). 
h. Nisus torquatus (1) Sclil. , Mus. P.-B. Astures 1862, 39; (II) id., Yalkv. Ned. Ind. 1866, 
25, 63, pi. 17, figs. 1 — 5; (3) id.. Rev. Accip. 1873, 91. 
c. Astur cruentus (1) Gould, P. Z. 8. 1842, 1 13; (II) id., B. Austr. 1848, I, pi. 18?; (3) id., 
HB. B. Austr. 1 865, I, 43. 
d. Astur torquatus (1) Sbarpe, Cat. B. I, 1874, 125; (2) Hartert, Nov. Zool. 1896, 177. 
Urospizias torquatus (1) Gurney, Ibis 1875, 365; (2) Salvad., Orn. Pap. I, 1880, 60, 549; 
(3) id.. Ibis 1881, 606; (4) Gurney, Ibis 1881, 263 — 66; (5) id.. Diurn. B. of Prey 
1884, 37; (6) Salvad., Agg. Orn. Pap. 1889, 20; (7) Gurney jr.. Ibis 1893, 349; 
(8) Salvad., Ann. Mus. Civ. Gen. 1896, XXXVI, 60. 
For further synonymy and references cf. Salvador! 2, 6. 
