NEW SUBSPECIES OF DENDRAGAPUS. 3 



terminal to poorly defined marginal spots. The latter persisting on some 

 of the lesser coverts as vague spots and narrow borders. 



Below, between neutral gray and deep neutral gray, and obscured pos- 

 teriorly by a white tipping of the feather ends that blends into the white 

 of the basal under tail coverts. 



Lower breast feathers with white shaft lines broadening towards the 

 flanks and posteriorly where they develop into broad terminal spots, streaks, 

 and bars. A fine vermiculation of buffy 1 and grayish 1 overlaying the body 

 colour of the feather tips of the sides. 



Under tail coverts dusky neutral gray or black with prominent white 

 shaft lines and final borders. White increasing towards base of tail until 

 body colour of feathers is hidden. 



Head from deep neutral gray to neutral gray darkest on crown and ear 

 coverts, overwashed with rusty 1 strongest on forehead at base of bill and 

 more or less obscuring body colours of darker feathers and at last dying away 

 at back and sides of upper neck as a faint olivaceous 1 tinge. 



Throat patch, white with irregular deep neutral gray spotting, aggre- 

 gated on malar region and each spotted feather terminated with small white 

 border. 



Lores, deep neutral gray, with white flecking. 



Dark feathers of the breast band creamy white basally, the white grad- 

 ually encroaching on the dark tips towards the sides, finally usurping most 

 of the feather and making a semi-concealed white streak down the sides of 

 the neck to the bend of the folded wing. 



The characters of the female are less marked than of the male and without 

 series for comparison may be difficult of recognition. However, they average 

 in the same directions as the male being bluer underneath than richardsoni 

 and darker dorsally, with the rufous 1 or rusty 1 markings bolder and more 

 decided in character. 



Measurements (in inches). Male, average of four specimens. 

 Wing, 8.25-8.75 (average 8.51); tail, 6.5-6.75 (average 6.33); tarsus, 

 1.70-1.80 (average 1.75); exposed culmen, 0.65-0.75 (average 0.71). 

 Female average of twelve specimens. 



Wing, 7.45-8.10 (average 7.70); tail, 5.10-5.75 (average 5.25); tarsus 

 1.48-1.68 (average 1.55); exposed culmen, 0.65-0.71 (average 0.69). 



Distribution. This description is based entirely on specimens taken 

 within thirty miles of Teslin lake, on the boundary between British Colum- 

 bia and Yukon Territory, longitude 130-30', at the west base of the Cassiar 

 mountains. The range of the form cannot, therefore, be defined, but a study 

 of the material examined is suggestive. 



The male specimens in the series are as follows: British Columbia: 

 Trail, Midway, and Revelstoke: 7 specimens. 



Montana and Idaho: Preuss mts., Fiddle creek; and Nyak and Bear- 

 tooth mts. : 4 specimens. 



1 These terms are not from Ridgway's "Colour Standards." 



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