368. Acrocephalus macrorhynchus.
The Large-billed Reed-Warbler.
Phyllopneuste macrorhynchus, Hume, Ibis, 1869, p. 357. Acrocephalus macrorhynchus (Hume), Hume, Ibis, 1871, p. 31; id. S. F. iii, p. 405; id. Cat. no. 517 bis; Seebohm, Cat. B. M. v, Add. p. 404.
Coloration. The upper plumage and visible portions of wings and tail olive-brown; the lower plumage pale ochraceous; the under wing-coverts and axillaries paler.
Length about 5 ; tail 2.3 ; wing 2.4 ; tarsus .85; bill from gape .8; the first primary measures .35 ; the second is intermediate between the ninth and tenth; the closed tail is graduated to the extent of .4.
The type specimen, the only one known, I believe, of this species is now in the British Museum. It appears to me to represent an undoubtedly distinct species of Acrocephalus, which may be recognized by its abnormally large bill. The bird procured by Scully, and identified by him with the present species (S. F. iv, p. 146), is also in the British Museum, and is without doubt a specimen of Tribura major.
Distribution. The type was obtained in the Sutlej valley not far from Rampur.