94 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
erissum brownish white, broadly and distinctly barred with dusky, the 
sides more tinged with brown. Auriculars dusky brown, streaked with 
the color of the throat. Bill brownish-black, more brown on lower 
basal portion of mandible; ‘iris dark brown”; legs and feet dark brown. 
Wing 2.15, tail 1.60, culmen (from frontal feathers) .50, bill from nostril 
.38, tarsus .75, middle toe .55. 
A young bird from Copper Island is colored more like A. alascensis, 
and may be the same species or anintermediate race. ‘Phe upper parts 
are entirely uniform rusty brown, becoming brighter rusty on rump and 
upper tail-coverts. 
This new race is totally unlike the Japanese A. fumigata (Temm.), 
which is asmall form of very dark coloration, and somewhat like A. 
hyemalis pacifica of the Pacific coast of North America, but, as a matter 
of course, very distinct. In large size and general proportions it agrees 
quite closely with A. alascensis (Baird), but the coloration is entirely 
different, as the following comparative diagnosis may show, the compar- 
ison being made between two adult males in autumnal plumage (the 
one of A. pallescens obtained September 20, that of A. alascensis October 
21): 
A. PALLESCENS.—Above dull smoky-brown, the lower back, rump, and 
upper tail coverts distinctly barred with dusky; indistinct super- 
ciliary stripe, lores, malar region, chin, throat, and sides of breast 
dull pale brownish-buff; lower breast and upper belly dull brown- 
ish-white ; sides, flanks, and crissum brownish-white, broadly and 
distinctly barred with dusky. Wing 2.15, tail 1.60, culmen (from 
frontal feathers) .50, bill from nostril .38, tarsus, .75, middle toe .55. 
Hab. Bering Island. 
A. ALASCENSIS.—Above, bright rusty brown, becoming more rufous 
posteriorly, the lower back, rump, and upper tail-coverts without 
trace of bars; superciliary stripe, lores, malar region, chin, throat, 
jugulum, breast, and sides, deep fulvous-buff, the belly similar, but 
slightly paler; flanks and anal region rusty brown, narrowly and 
indistinctly barred with dusky; crissum bright rusty-brown, each 
feather tipped with a pure white spot, this preceded by a dusky 
one. Wing 2.10, tail, 1.50, culmen .60, bill from nostril 40, tarsus 
.80, middle toe .60. Hab. (of specimen described) Unalashka. 
There are several species or races of this genus belonging to the 
elevated regions of Central and Eastern Asia, which appear to be more 
or less nearly related to this new form, but I have not been able tomake 
a direct comparison with any of them. The one which seems to come 
nearest, judging from descriptions, is A. neglecta (Brooks) from Gilgit 
and Cashmere (alt. 5,000-10,000 ft.), but there appear to be decided dif- 
ferences of coloration, while the habitat is of itself an almost certain 
indication of their distinctness. (Cf. SHARPE, Cat. Birds Brit. Mus., 
vi, p. 278.) 
