ART. 16. 



BIRDS FEOM NORTH CELEBES RILEY. 



69 



In all the forms of this species examined by me the males are simi- 

 lar, but judging from the females of the only two forms in which I 

 have been able to examine this sex the differences are quite notice- 

 able. The female of the Javan form has the pectoral band very 

 pronounced with the throat and superciliaries much lighter, while 

 in that from Celebes the superciliaries are of about the same color as 

 the throat which is scarcely or not lighter than the chest. A single 

 male from Kina Balu, Borneo, is lighter above and much lighter 

 below than any specimen of the several forms before me and prob- 

 ably represents a distinct form. 



Three young in the spotted plumage, not long from the nest, with 

 stumpy tails, were taken at Rano Rano, December 13-18; a young 

 bird, considerably older, taken at Goenoeng Kalabat, April 9, 

 though marked female is undoubtedly a male and is assuming the 

 plumage of the adult. Some dark-blue feathers are appearing 

 amongst the sooty ones of the back; the superciliary is only indi- 

 cated by buffy bases to some of the feathers; the throat and fore- 

 neck light pinkish cinnamon, the dark mentum barely indicated : the 

 chest much deeper than the throat, the feathers margined with sooty, 

 giving a mottled appearance ; the rest of the plumage is much as in 

 the adult, except that the feathei^s of the sides are narrowly edged 

 with dusky. The chief interest of this specimen is that it shows that 

 the adult plumage is assumed soon after leaving the nest. 



The series before me averaere as follows : 



Ten males, D. h. jugosae 



Four males, D. h. vulcani 



Two males, D. h. annamensis. 

 One male, Kina Balu, Borneo 

 Nine females, D. h. jugosae... 

 Four females, D. h. vulcani 



141. MUSCICAPULA MELANOLEUCA WESTERMANNI Sharpe. 



One male, Goenoeng Kalabat, April 10, 1916. 

 It measures : Wing, 58 ; tail, 41 ; culmen, 9 mm. 



142. GERYGONE FLAVEOLA Cabanis. 



One female, Kwandang, September 15, 1914; one male, Toll Toli, 

 December 6, 1914; three females, Koelawi, Januaiy 27-February 10, 

 1917; one male, Kano Lindoe, March 29, 1917; one female, Rano 

 Eano, December 29, 1917. 



Meyer and Wiglesworth ^^ in their description do not refer to the 

 dark snbterminal tail-band, but it is mentioned by Sharpe "^^ and well 



2» Birds of Celebes, vol. 1, 1898, p. 388. 



" Cat. Birds Brit. Mus., vol. 4, 1879. p. 214, pi. 5, fig. 2. 



2018.3— 25— Proc. N. M. vol. 64- 



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