The accompanying Plate represents the bird in two positions of the natural size. [Illustration: OREOCINCLA LUNULATA. _J. Gould and H. C. Richter del et lith._ _Hullmandel & Walton Imp._ ] OREOCINCLA LUNULATA. Mountain Thrush. _Turdus lunulatus_, Lath. Ind. Orn. Supp., p. xlii. _Philedon_, Temm. Man. d’Orn., 2nd Edit. tom. i. p. lxxxvii. _Lunulated Thrush_, Lath. Gen. Syn. Supp., vol. ii. p. 184. —— _Honey-eater_, Lath. Gen. Hist., vol. iv. p. 180. _Turdus varius_, Vig. and Horsf. in Linn. Trans., vol. xv. p. 218. _Oreocincla Novæ-Hollandiæ_ et _O. macrorhyncha_, Gould in Proc. of Zool. Soc., Part V. p. 145; and in Syn. Birds of Australia, Part IV. _Mountain Thrush_, Colonists of Van Diemen’s Land. In all localities suitable to its habits and mode of life this species is tolerably abundant, both in Van Diemen’s Land and in New South Wales; it has also been observed in South Australia, where however it is rare. From what I saw of it personally, I am led to infer that it gives a decided preference to thick mountain forests, where large boulder stones frequently occur covered with green moss and lichens, particularly if there be much humidity; rocky gulleys and the sides of water-courses are also among its favourite places of resort. In Van Diemen’s Land, the slopes of Mount Wellington and other similar bold elevations are situations in which it may always be seen if closely looked for. During the summer it ascends high up the mountain sides, but in winter it descends to the lower districts, the outskirts of the forests, and occasionally visits the gardens of the settlers. In New South Wales, the Cedar Brushes of the Liverpool range and all similar situations are frequented by it; I also observed it on the islands at the mouth of the Hunter; and I possess specimens from the north shore near Sydney and the banks of the Clarence. Its chief food is Helices and other mollusks, to which insects of many kinds are added; most likely fruits and berries occasionally form a part of its diet. It is a solitary species, more than two being rarely observed together, and frequently a single individual only is to be seen, noiselessly hopping over the rugged ground in search of food. Its powers of flight are seldom exercised, and so far as I am aware it has no song. Considerable variation exists in the size and in the colouring of individuals from different districts. The Van Diemen’s Land specimens are larger, and have the bill more robust, than those from New South Wales; considerable difference also exists in the lunations at the tip of the feathers, some being much darker and more distinctly defined than others. The young assume the plumage of the adults from the nest, but have the lunations paler and the centre of the feathers of the back bright tawny instead of olive-brown.