Order C0LUMBIF0RME8 
No. 23. 
Family TRERONIDM. 
LEUCOTRERON CINCTA ALLIGATOR. 
BLACK-BANDED FKUIT-PIGEON. 
(Plate 21.) 
Ptilopus (Letjcoteeron) alligator Collett, P.Z.S., p. 354 (1898), Arnhem Land, Northern 
Territory. 
Ptilopus (Leucotreron) alligator Collett, P.Z.S., p. 354, PI. XXIX. (1898); Hall, Key 
B. Austr., p. 69 (1906). 
Ptilopus alligator Campbell, Nests and Eggs Austr. B., p. 663 (1901). 
Ptilinopus cincta alligator Hartert, Nov. ZooL, XII., p. 195 (1905). 
Leucotreron alligator Sharpe, Handl. Birds, I., p. 56 (1899) ; Mathews, Handl. B. Austral., 
p. 8 (1908). 
Distribution. South Alhgator River ; Arnhem Land, Northern Territory. 
Adult female. Head and neck all round, including the upper-breast, white, with a wash of 
buff on the latter, as also on the hind-neck, a narrow white Hne dividing these 
parts from the greenish-black band on the breast and the black of the upper-back ; 
lesser vang-coverts hke the upper-back ; median and greater coverts slate-grey, with 
black margins ; primary-coverts and primary- quills greenish-black, as also the 
secondaries ; lower-back dark ashy-grey, becoming paler on the upper tail-coverts ; 
the long upper tail-coverts shovong dark shaft-streaks ; tail black, broadly tipped 
with white ; abdomen, sides of body, under wing-coverts, axillaries, and under 
tail-coverts bluish-grey, becoming almost white on the long under tail-coverts ; 
“ BiU (in skin), light coloured, tip yellowish ; feet reddish ” (R. Collett). Total 
length, 345 mm. ; culmen, 23 ; wing, 184 ; tail, 140 ; tarsus, 21. 
Adult male. Similar to female. 
Nest and eggs. Undescribed. 
This species was originally discovered by Dr. Knut Dahl, a young Norwegian 
naturalist, on the I5th June, 1895. Both sexes were obtained. 
The two specimens of this bird were shot while with a flock which was 
seated feeding in a Bonjon tree (a sort of Ficus). They were never seen except 
in the region near the sources of the South Alligator River in Arnhem Land. 
Their flight was very noisy. Their food consists mainly, according to native 
report, of the fruit of the said Bonjon tree, the figs of which are not bigger than 
the berries of the mountain ash.”* 
* Collett, t.e. 
lOI 
