I have no other information to communicate respecting this beautiful _Platycercus_, than that it is an inhabitant of New South Wales, and is abundant on the banks of the rivers Lachlan and Darling. The bird was first sent to this country by Captain Sturt some years since, when he presented a beautiful example with several other rare birds to the Zoological Society of London. Since that period Major Sir Thomas L. Mitchell has introduced several other specimens to England, and I am indebted to this gentleman for the only one in my cabinet. I also saw in the Museum at Sydney several specimens of this little-known bird, which had been collected by Sir Thomas during his expeditions to the Darling, &c. In all the specimens here mentioned little or no variation in their plumage is observable—a circumstance, which induces me to suspect, that, like the Rose-hill Parrakeet, the young are clothed in a similar character of plumage to the adults, or if not, that they gain the full colouring at a very early age: the sexes offer no external differences. Forehead crimson; cheeks light blue; crown of the head, back of the neck, back, rump, upper tail-coverts, and all the under surface pale yellow, the feathers of the back being black in the centre and pale yellow on their outer edges; middle of the wing pale blue; spurious wing and the outer web of the basal portion of the primaries deep violet-blue, the remainder of the primaries dark brown; two central tail-feathers tinted with green at the base, passing into blue towards the tip; the remaining feathers have the basal portion of their outer webs deep blue, passing into very pale blue towards their tips; the inner webs brown for a greater or less portion of their length, the extreme tips of all being white; bill light horn-colour; feet dark brown. The Plate represents a male of the natural size. [Illustration: PLATYCERCUS PALLICEPS: _Vig._ _J. & E. Gould del et lith._ _C. Hullmandel Imp._ ] PLATYCERCUS PALLICEPS, _Vig._ Pale-headed Parrakeet. _Platycercus palliceps_, Vig. in Lear’s Ill. Psitt., pl. 19. _Moreton Bay Rose-hill_, Colonists of New South Wales.