ACANTHIZA EWINGII, Gowda. Ewing’s Acanthiza. Acanthiza Ewingii, Gould in Proc. of Zool. Soc., August 13, 1844. Tus species of Acanthiza is a native of Van Diemen’s Land, and has been named after the Reverend Thomas James Ewing, a gentleman ardently attached to the study of Natural History, and a sincere friend to all who have the advantage of his acquaintance. That there were two nearly allied species of this genus inha- biting Van Diemen’s Land was an opinion I had entertained before my visit to that country, and I have since ascertained that this opinion was a correct one, although I did not reside there long enough to ascertain what difference may exist in the habits and economy of the two birds. The Acanthiza Ewingii is more elegant in all its proportions than its near ally, the Acanthiza Diemenensis, for although it is a smaller bird, its tarsi are longer and more slender. There is also a rich brown mark at the base of the primaries of 4. Ewing, which does not occur in any other known species ; the markings of the breast also are more indistinct and clouded with blue-grey, while in 4. Diemenensis this part of the plumage is lighter and more inclined to brown. I have never seen this little bird on the continent of Australia, and I believe that it never occurs there. Crown of the head light brown; all the upper surface brownish olive; wings dark brown ; primaries margined at the base with sandy buff; tail rich brown, crossed by a broad band of black near the tip; the lateral feathers tipped with white ; throat speckled black and white; under surface pale olive; irides dark brown; bill and feet brown. The Plate represents the two sexes of the natural size.