421 
Species of Marsh - Warbler . 
tip barely indicated; the tail is much less rounded than in 
A. palustrisj the feathers are broader, and on one or two there 
are obsolete cross bars as in Locustella luscinoides. Under¬ 
parts white; on the breast, flanks, crissum, and under tail- 
coverts washed with pale brownish buff; sides of the head 
pale brownish; from the base of the bill over and behind the 
eye a narrow dirty buff stripe. 
Culmen 0 7 inch, gape 0*74, wing 3’0, tail 2*4, tarsus 0*85, 
hind toe with claw 0*45, hind claw 0*22; first primary rather 
broad, a trifle longer than the primary coverts, and 1*71 less 
than the second, which is barely 0*1 shorter than the third 
and about equal to the fourth, or, if any thing, a trifle less; 
the third primary is the longest; secondaries rather gra¬ 
duated, the longest about 0*72 shorter than the longest 
primary. 
Compared with Acrocephalus dumetorum , it has a much 
longer and less broad wing, and is much greyer in shade of 
coloration in the upper surface of the body; and, besides, it 
has a much larger first primary, and differs somewhat in the 
arrangement of the quills; for in A. dumetorum the first pri¬ 
mary is small and narrow, about equal to or rather shorter 
than the primary coverts, and 1*3 less than the second; 
second quill 0*25 shorter than the third, and about equal to 
the fifth, the third and the fourth being about equal, the 
third, if any thing, being the longest; secondaries not gra¬ 
duated, but even, and only 0‘5 shorter than the longest 
primary. 
Severtzoff describes a Warbler in his recently published 
work on the Fauna of Turkestan (Turk. Jevotnie, p. 123) 
under the name of Sylvia magnirostris, nob., which, I have 
little doubt, is the present species, as his description agrees 
precisely with the single specimen I have before me. He 
states that the iris is blackish brown, the maxilla dark brown, 
and the mandible yellowish; legs dark brown; and he not 
inaptly compares it to the Garden Warbler (Sylvia horten- 
sis) in general tone of colour of plumage. He met with it 
frequenting the bush-covered localities at Karatau and in the 
western portion of the Thianshan range. 
