1906.) 



NATURAL SCIENCES OF PHILADELPHIA. 



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much duller, slightly more bluish upper parts ; from C. I. cyanoptila in 

 inferior size and much duller, more greenish upper surface; and from 

 C. I. affinis in somewhat longer wing, slightly shorter tail, and decidedly 

 duller, more greenish upper parts, particularly the tail. 



Birds in juvenal plumage, even before their wings and tails are fully 

 grown, seem to be exactly like the adults in color above, and not ap- 

 preciably different below except for possibly broader, more evident 

 white margins on lower breast, sides, flanks, and lining of wing. 



This form of Collocalia linchi appears to be confined to the Philip- 

 pine archipelago, and has been taken on only Luzon, Mindoro, Min- 

 danao, and Bongao. 



Measurements of three adults are as under : 



Collocalia dodgei Richmond. 



Collocalia dodgei Richmond, Smithson. Quart., II, 1905, p. 431. 



Chars, sp. — Resembling Collocalia linchi isonota, but very much 

 smaller; upper parts still duller, more sooty, with an even more green- 

 ish metallic gloss. 



Wing, 88.5;'^ tail, 33; exposed culmen, 3.5; tarsus, 7 mm. 



Type locality. — Mount Kina Balu, northeastern Borneo. 



Geographical distribution. — Mount Kina Balu, northeastern Borneo, 



Description. — Type, adult, sex unknown, No. 191,575, U. S. N. M.; 

 Mount Kina Balu, Borneo, spring of 1904; George H. Goss and H. D. 

 Dodge. Upper parts dull brownish black with an appreciable oil- 

 green metallic gloss, the pileum slightly darker; tail and superior tail- 

 coverts darker greenish, somewhat shaded with bluish and without 

 trace of white markings; wings like the tail, but inner margin of quills 

 brownish with little or no metallic sheen, and upper wing-coverts, 

 with innermost secondaries, more greenish like the back; sides of head 

 and neck, chin, throat, breast, sides, and flanks brownish slate, darkest 



" Type. 



*^ Dr. Richmond's measurement of the wing is too great (loc. cit.). 

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