The sexes resemble each other so closely in colour, that it is impossible to distinguish the one from the other, except by dissection. All the upper surface leaden grey, becoming much darker on the forehead and lores; wings black; secondaries margined with grey and tipped with white; basal half of the inner webs of the primaries white, of the outer webs grey; the remainder of their length black, slightly tipped with white; tail black, margined with grey and largely tipped with white; all the under surface greyish brown; under tail-coverts white; irides orange; bill and feet black. The figure represents a male of the natural size. [Illustration: GYMNORHINA TIBICEN: _G. R. Gray_. _J. Gould and H. C. Richter del et lith._ _C. Hullmandel Imp._ ] GYMNORHINA TIBICEN. Piping Crow-Shrike. _Coracias Tibicen_, Lath. Ind. Orn., Supp., xxvii.—Shaw, Gen. Zool., vol. vii. p. 405. _Barita Tibicen_, Temm. Man., part i. p. li.—Less. Traité d’Orn., p. 345. _Piping Roller_, Lath. Gen. Hist., vol. iii. p. 86. no. 23. _Cracticus Tibicen_, Vig. and Horsf. in Linn. Trans., vol. xv. p. 260.—Gould, Syn, Birds of Australia, Part I. _Gymnorhina Tibicen_, G. R. Gray, List of Gen. of Birds, 2nd edit. p. 50. _Ca-ruck_, Aborigines of New South Wales. This species is universally diffused over the colony of New South Wales, to which part of the Australian continent I believe its habitat to be confined. It is true that a bird of this genus inhabits the neighbourhood of Swan River, whose size and style of plumage is very similar, but which I have little doubt will prove to be distinct. In fact, from what we see in other instances, it is natural to expect that there would be a species of this genus on the western as well as on the eastern side of the country, and that they would, as representatives of each other, be very nearly allied; I shall therefore consider the habitat of the present bird to be restricted to New South Wales until I have further proofs to the contrary.