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Show 1885.] DURING THE VOYAGE OF THE YACHT 'MARCHESA.' 259 streaked with black ; beneath, the breast and flanks are lightly with grey. Iris brown ; bill and tarsus black. Length 17*5-19*0 centims.; wing 9*2-9*4 centims. These skins agree with those of Bornean origin. The representative L. leucopygialis of Celebes differs only in having the back and rump pure white. This species appears to frequent the jungle only. 23. PERICROCOTUS MARCHESS, sp.nov. (Plate XVIII. fig. 1.) 6". Superne nitide niger; dorso inferiore, uropygio et supra-caudalibus Icete aurantiaco-jiavis : alis nigris, tectricum apicibus, et secundariis basin versus, fiavis, speculum alare magnum formantibus; primariis intimis versus basin, et secundariis intimis versus apicem, pogonio exteriori fiavo ornatis; subalaribus fiavis; cauda nigra, rectricibus centralibus omnino nigris, reliquis ad basin nigris, sed fiavo gradatim terminatis; pileo, capitis lateribus, mento gulaque nigris ; corpore reliquo subtus late aurantiaco-fiavo; iride brunnea; rostro et pedibus nigris. Long. tot. 0*168m-0*173m ; al. 0*076m-0*078m ; caud. 0086m ; rostr. 0*013ra; tars. 0*014m. Hab. Insula " Sulu" dicta. a, b. 6 • Maimbun, Sulu Island, M a y 15th, 1883. But two examples of this beautiful new species were obtained, and no others were observed during the ' Marchesa's' visit to the Archipelago. They were shot at the edge of some thick jungle in the south of the island of Sulu. 24. CHIBIA PECTORALIS (Wallace). Dicrurus pectoralis, Wall. P. Z. S. 1862, pp. 335, 342 ; Finsch, Neu-Guinea, p. 170. Chibia borneensis, Sharpe, P. Z. S. 1879, p. 246. Chibia pectoralis, Sharpe, Cat. B. iii. p. 240. Hab. Sulla Islands (Wallace) ; Obi group (Bruijn) ; Sulu (Guillemard). a-c. 6*. Maimbun, Sulu Island. d, e. 2 - Maimbun and Parang, Sulu Island. /. (In moult), Sulu Island. Iris crimson lake ; in a, an apparently old male, it is reddish brown. Bill and tarsus black. Length circa 28*0 centims. ; wing 14*8-15*6 centims. These individuals differ a good deal in the size, colouring, and distribution of the metallic spots on the head and throat, and these characteristics can therefore be no guide whatever to the identification of the species. The frontal tuft of silky plumes appears only to be acquired by old adults. Three of the present series, two of them being females and the third of undetermined sex, are entirely destitute of it. I have examined the type of Mr. Sharpe's C. borneensis, described in P. Z. S. 1879, and do not regard it as specifically separable from the present bird. The frontal plumes |