NO. 2 ASIATIC BIRDS OF GENUS CRINIGER—DEIGNAN 3 
Range.—Southern Burma (the Amherst District of Tenasserim) 
and (probably) northwestern Thailand. 
Remarks.—This form was based upon three faded specimens in 
London, collected in the Amherst District during the 1870's; two of 
them, including the type, are apparently immature, differing from an 
obvious adult by paler, bright, and more gold-suffused coloration 
above and below, and by the slight development of the gular feathers. 
The length of crest feathers and tail of the adult show that it be- 
longs rather with pallidus than with bres (“tephrogenys”’ of Tice- 
hurst), and making allowances for its quite serious fading, it appears 
to represent a population intermediate between henrici and griseiceps. 
An apparent difficulty arises from the fact that griseiceps is until 
now reported only from the Pegu Yomas, robinsoni only from the 
Amherst District of Tenasserim, and henrici from nowhere south and 
west of Doi Ang Ka (lat. 18°35’ N., long. 98°30’ E.) in northwestern 
Thailand ; thus the three populations seem to be quite isolated from 
each other. Yet it is difficult to believe that the intervening territory, 
so suitable for the species, should wholly lack some representative 
of the group, and the suspicion that the vacuum is more imaginary 
than real is supported by the existence of a unique skin (M.C.Z. 
No. 196535) from Doi Ang Ka that can be separated from griseiceps 
only by having the crest feathers colored quite as in henrici, without 
the least grayish wash. A second indication of probable intergrada- 
tion between the two, and one further strengthening the view that 
robinsoni is an intergradient population, is the fact that, of the two 
faded paratypes of robinsoni now before me in Washington, while 
the adult has the crest faintly washed with gray (as if approaching 
griseiceps), the immature has it red-brown (as if approaching henrici). 
For the present, I consider griseiceps a geographically and chromat- 
ically extreme representative of Criniger pallidus, with which it is 
connected in conventional fashion through robinsoni. 
Criniger pallidus robinsoni seems to be sympatric in the Amherst 
District with Cringer flaveolus burmanicus and Criniger ochraceus 
ochraceus. 
Criniger pallidus griseiceps Hume. 
Criniger griseiceps Hume, Stray Feathers, vol. 1, No. 6, December 1873, 
p. 478 (“Upper Pegu,” Burma). 
Range.—Southern Burma (Pegu Yomas). 
Remarks.—This race is very strongly marked compared with others 
of the species. Its mantle is greener (but wholly lacking the golden 
tone appearing in Criniger fl. burmanicus) ; its crest is strongly suf- 
fused with gray, although basically a dull red-brown as in the rest. 
