The Red-capped Parrakeet is an inhabitant of Western Australia, where it is rather numerously dispersed over the country from King George’s Sound to the northern limits of the colony. It is usually seen in small families feeding on the ground, but upon what particular kind of food it subsists has not been ascertained. The breeding-season extends over the months of October, November and December. The hollow dead branch of a gum- or mahogany-tree is the place usually chosen by the female for the reception of her eggs, which are milk-white and from seven to nine in number, about an inch and an eighth long by seven-eighths of an inch broad. The young during the first year of their existence are of nearly uniform green; at the same time, the hues which characterize the adult are perceptible at almost any age. The females are never so finely marked as the males, neither are they so large or so gracefully formed. The flight of this species, although swift, is not of long duration, nor is it characterized by those undulating sweeps common to the other members of the genus _Platycercus_. Its voice is a sharp clucking note, several times repeated, in which respect it also offers a marked difference from the other _Platycerci_. Forehead, crown and nape deep maroon red; cheeks yellowish green, becoming more yellow on the sides of the neck; back, scapularies and greater wing-coverts deep green; rump jonquil-yellow; edge of the shoulder, spurious wing and base of the outer webs of the primaries rich deep blue; remainder of the primaries and the secondaries deep black; breast and abdomen blue; vent and under tail-coverts scarlet; two centre tail-feathers yellowish green, deepening into black at the tip and crossed by indistinct bars of a darker tint; lateral feathers green at their base, passing into black on their inner webs, and into pale blue on the outer, both webs becoming blue towards the extremity of the feather, and fading into white at the tip; irides dark brown; bill horn-colour; legs and feet dull brown. The Plate represents an adult male and female of the natural size. [Illustration: PSEPHOTUS HÆMATOGASTER: _Gould_. _J. Gould and H.C. Richter del et lith._ _Hullmandel & Walton Imp._ ] PSEPHOTUS HÆMATOGASTER, _Gould_. Crimson-bellied Parrakeet. _Platycercus hæmatogaster_, Gould in Proc. of Zool. Soc., Part V. p. 89.