MUSCADIVORES. AD 
A-bu-un, Cagayancillo. 
Cagayancillo* (McGregor); Cagayan Sulu (@uillemard); Sibutu (Everett) ; 
* Sulu (Guillemard). Mantanani Islands, Lawas River, northwest Borneo. 
“Adult male-——Head and under parts grayish vinous, changing into 
_ pure gray on lower hind neck and upper mantle; frontal edge, a ring 
of feathers round eyes, and chin whitish; back, rump, and wings grayish 
green (in some specimens with a slight brown tinge), with a metallic 
luster in some lights; longer upper tail-coverts and tail above metallic 
bottle-green; primaries mealy green, especially on outer webs; under 
surface of wings and tail gray; under tail-coverts gray with a reddish 
tinge. ‘Iris crimson; bill light lead-gray; feet dull crimson.’ (Hverett.) 
Length, about 400; wing, 240; tail, 173; bill, 20; tarsus, 28. 
“Female.—Similar to the male.” (Salvadori.) 
This species was very abundant on Cagayancillo where it fed entirely 
on young leaves of trees. 
36. MUSCADIVORES LANGHORNE! (Mearns). 
LANGHORNE’S IMPERIAL PIGEON, 
Muscadivora langhornei MEARNS, Proe. Biol. Soe. Wash. (1905), 18, 84; 
McGrecor and WorcESTER, Hand-List (1906), 11. 
East Bolod (Mearns); West Bolod (Jearns). 
“This large fruit pigeon is closely related to Muscadivora pickeringt 
(Cassin) from Mangsee Island north of Borneo, on the west side of the 
Sulu Sea, of which the type (No. 15732) is in United States National 
Museum. ‘The size is practically the same; but the colors differ as 
follows: General coloration paler; the vinous-gray of the head and under 
parts is darker, the gray of lower hind neck extends farther down on the 
mantle, the white around the base of the bill and surrounding the eye 
is more extensive, the back and rump are paler and less brownish gray, 
the wings are paler, grayer and less greenish, and the under tail-coverts 
less reddish. Iris purplish red; region of the nostrils dark plumbeous; 
bill hght plumbeous; naked eyelid deep vinaceous; bare space around 
eye plumbeous; feet vinaceous, flesh-color on under side of toes; claws 
plumbeous. Three adult males: Length, 456, 456, 460; alar expanse, 
770, 760, 770; wing, 242, 242, 243; tail, 180, 180, 178; culmen, 19, 21, 
19; tarsus, 30, 31, 32; middle toe with claw, 48, 49, 45.” (Mearns.) 
Genus PTILOCOLPA Bonaparte, 1854. 
Sexes unlike in plumage; bill and gape rather small compared with 
Muscadivores; nostril opening elongate; first primary attenuated and 
scooped on inner web; second primary slightly scooped ; inner primaries 
obliquely cut at tip; the outline sinuous and outer web extending beyond 
shaft and inner web; tarsus partly feathered. 
* Birds from some of these localities may be VW. langhornei. 
