"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 nostrils 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. Species. a1. Chin, throat, and upper part of chest gray or black. b1. Band on fore breast light slate-gray. ... carola (p. 46) b2. Band on fore breast black. ... nigrorum (p. 47) a2. Chin, throat, and upper part of chest nearly pure white. ... mindanensis (p. 47) 37. PTILOCOLPA CAROLA (Bonaparte). GRAY-BREASTED FRUIT PIGEON. Carpophaga carola Bonaparte, Consp. Gen. Avium (1854), 2, 34; Salvadori, Cat. Birds Brit. Mus. (1893), 21, 206. Ptilocolpa carola Grant, Ibis (1895), 117; Whitehead, Ibis (1899), 489; Sharpe, Hand-List (1899), 1, 65; McGregor and Worcester, Hand-List (1906), 12. Ptilocolpa griseipectus Bonaparte, Consp. Gen. Avium (1854), 2, 34. Luzon (Gevers, Heriot, Whitehead, McGregor); Mindoro (Steere Exp., Whitehead, McGregor, Porter); Mindanao (Everett, Koch & Schadenberg); [7] Sibuyan (McGregor).