collected in Dutch JVeio Guinea. 193 



and tail much wider, the middle rectrices measuring about 

 13"5mm.inwidth, as compared with 11 mm. in C.hirundinacea. 

 The upperparts are dark smoky-black, glossed with greenish 

 on the scapulars and upper tail-coverts and purplish on the 

 tail ; the underparts are uniform dull silvery-grey or greyish- 

 white. 



The measurements are as follows !^ 



S . "Wing 127, tail 56 mm. 

 ? . „ 131, ,^ 63 muii 



The two specimens represent a larger, longer-winged 

 mountain-race of C. liiriindinacea ^treseniann, which was 

 only met with on the low ground by the B.O.U. Expedition 

 to the Mimika Hiver, and described from specimens procured 

 by A. S. Meek on the Setakwa River. 



In the Tring Museum there is a female example of Collo- 

 calia from Kanai, 1000 ft.. Great Natuna Island, killed in 

 July 1894:. This bird has a wing-measurement of 127 mm, 

 and closely resembles the two examples of C. h. excelsa from 

 the Snow Mountains described above and appears to be 

 referable to that subspecies. 



Collocalia iiitens. 



Collocalia nitens Ogilvie-Grant, Bull. B. 0. C xxxv. p. 35 

 (1914). 



a. ^ . Camp 6 A, Utakwa River, 2900 ft., 8th Jan. 1913. 

 [(^. B. iT.] {d\jpe of the species.) 



This species seems to occupy an intermediate position be- 

 tween C. linchi Horsf. & Moore aiid C. escidenta (Linn.), 

 having metallic upperparts like the latter and an unspotted 

 tail like the former. The upperparts are purplish-blue, the 

 crown and mantle being as brightly coloured as the rest bt 

 the upperparts. In this respect it is unlike any subspecies 

 of the C. linchi group. It resembles C. esculenta, especially 

 examples in the British Museum from Northern Queensland^- 

 which have the v\diite spots on the inner webs of the tail- 

 feathers much reduced in size. In C. nitens the white 

 markings on the tail-feathers are entirely wanting. The 

 present species is farther characterised by having the middle 



SER. X. — JUB.-SUPPL. 2, o 



