MUSCADIVORES. 45 



A-bu-un, Cagayancillo. 



Gagayancillo * (McGregor)-, Cagayan Sulu (Ouillemard) ; 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.' (Everett.} 

 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 LANGHORNEI (Mearns). 

 LANGHORNE'S IMPERIAL PIGEON. 



Muscadivora langhornei MEARXS, Proc. Biol. Soc. Wash. (1905), 18, 84; 

 MCGREGOR and WORCESTER, Hand-List (1906), 11. 



East Bolod (Mearns) ; West Bolod (Mearns). 



"This large fruit pigeon is closely related to Muscadivora pickeringi 

 (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 nostrjls dark plumbeous; 

 bill light 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 M. langhornei. 



