50 



BULLETIN 159, UNITED STATES NATIONAL MUSEUM 



Adult male, U.S.N. M. No. 174733, Bunguran Island, July 22, 1900. 

 Length in flesh, 165 mm. "Iris yellow; bill blue, black at tip and 

 along commissure." 



Juvenal, sex unknown, U.S.N. M. No. 174734, Bunguran Island, 

 July 19, 1900. Length in flesh, 159 mm. "Iris bluish white." 



The adult male taken on June 27 (No. 174732) shows no trace of 

 molt, but the other, taken on July 22, is molting both wing quills and 

 contour feathers. 



' Measured in the flesh by the collector. 



The Juvenal plumage (No. 174734) differs interestingly from that 

 of the adult male, as follows: Black of all upper parts except the 

 tail, decidedly brownish; a pale yellow superciliary stripe; white 

 nuchal collar washed with yellow; middle of back with roundish 

 spots (instead of streaks) of yellow; median and greater wing coverts 

 with terminal spots of ycUow; bases of feathers of back nearly all 

 blackish or brownish (instead of pure white) ; a narrow whitish rictal 

 streak; chin and middle of upper throat dull grayish white washed with 

 yellowish, and slightly mixed with blackish; jugulum almost pure 

 wliite (instead of bufl'y); black pectoral band broken, reaching no 

 farther than the sides of the breast; breast dull grayish white, washed 

 with yellowish and obscurely streaked with blackish; sides, flanks, 

 and abdomen, light yellow, obscurely streaked with blacldsh, and only 

 the middle of upper abdomen and of lower breast vinaccous; bill 

 brownish. 



Attention has already been called ^' to the fact that the original 

 spelling of the specific name of this species is as here given. 



•CORYDON SUMATRANUS (Raffles) 



Coracias Sumatranus Raffles, Trans. Linn. Soc. London, vol. 13, pt. 2, p. 303, 

 Nov. or Dec, 1822. ("Sumatra.") 



Doctor Hartert has recorded ^^ a single specimen of this species 

 taken in July, 1894, at an altitude of 1,000 feet on Mount Ranay on 

 Bunguran Island. 



B Oberholser, Smithsonian Misc. Coll., vol. 60, no. 7, Oct. 26, 1912. 

 •« Nov. Zool., vol. 2, no. 3, p. 472, Aug. 17, 1895. 



