All the upper surface olive-brown; wings brown margined with olive; two centre tail-feathers brown; the remainder white, crossed by an irregular band of black and tipped with brown, the band upon all but the external feathers so blending with the brown at the tip that the white between merely forms a spot on the inner web; lores blackish brown; line over the eye, throat and chest light grey, passing into buff on the flanks, and into white on the centre of the abdomen and under tail-coverts; irides light reddish yellow; bill and feet black. The Plate represents a male and a female of the natural size. [Illustration: GERYGONE MAGNIROSTRIS: _Gould_. _J. Gould and H. C. Richter del et lith._ _Hullmandel & Walton Imp._ ] GERYGONE MAGNIROSTRIS, _Gould_. Great-billed Gerygone. _Gerygone magnirostris_, Gould in Proc. of Zool. Soc., Part X. p. 133. Of this species I regret to say but little information has as yet been received; the two examples in my collection are all that have come under my notice, and these were shot by Mr. Gilbert on Greenhill Island near Port Essington, while hovering over the blossoms of the mangroves and engaged in capturing the smaller kinds of insects upon which it feeds, during which occupation he observed that it gave utterance to an extremely weak twittering song: unfortunately he had no further opportunity of making himself acquainted with its habits and manners, which, however, doubtless resemble those of the other members of the genus. All the upper surface brown; margins of the primaries slightly tinged with olive; tail-feathers crossed near the extremity by an indistinct broad band of brownish black; all the under surface white, tinged with brownish buff; irides light brown; bill olive-brown; the base of the lower mandible pearl-white; feet greenish grey. The Plate represents male and female of the natural size. [Illustration: GERYGONE LÆVIGASTER: _Gould_. _J. Gould and H. C. Richter del et lith._ _Hullmandel & Walton Imp._ ] GERYGONE LÆVIGASTER, _Gould_. Buff-breasted Gerygone. _Gerygone lævigaster_, Gould in Proc. of Zool. Soc., Part X. p. 133.