This species inhabits the neighbourhood of Port Essington, where it is a very familiar bird, constantly flitting about the branches overhanging the houses of the settlement. In its general habits, manners and note it closely assimilates to the _Graucalus melanops_. It is abundant in every part of the Cobourg Peninsula, and is generally seen in small families of from four to ten or twelve in number. The whiteness of the under surface serves to distinguish this from all the other species of the genus yet discovered in Australia. The stomach is muscular, and the food consists of insects of various genera, which are generally taken from off the leafy branches of the highest trees. The sexes assimilate very closely in colouring, and only differ in the females and young males having the lores of a dull brown instead of black. Lores black; crown of the head and all the upper surface dark grey; wings and tail black; chin, under surface of the wings, abdomen and under tail-coverts white; breast pale greyish white; irides brownish black; bill blackish brown; legs and feet black; insides of the feet and spaces between the scales of the tarsi mealy grey. The figures are of the natural size. [Illustration: GRAUCALUS SWAINSONII: _Gould_. _J. Gould and H. C. Richter del et lith._ _Hullmandel & Walton Imp._ ] GRAUCALUS SWAINSONII. Swainson’s Graucalus. _Ceblepyris lineatus_, Swains. in Zool. Journ., vol. i. p. 466. _Graucalus Swainsonii_, Gould in Syn. Birds of Australia, Part IV. This species of _Graucalus_, which is distinguished from all the other Australian members of the genus by the beautiful barring of the breast, was originally described by Mr. Swainson under the appellation of _lineatus_; but that term having been previously applied to another species of the group, it became necessary to change it; and in substituting that of _Swainsonii_, I was desirous of paying a just tribute to the talents of a gentleman who has laboured most zealously in the cause of natural science, and whose researches and writings are so well known to all ornithologists. Examples of this species occur in almost every collection sent from Moreton Bay; I regret to add that it is one of the few birds I had no opportunities of observing in a state of nature, and that nothing is at present known of its habits and economy. Judging from the specimens I have examined, I believe that the sexes are alike in plumage. Lores black; head, all the upper surface, wing-coverts, throat and breast grey; primaries and secondaries black; the former narrowly, and the latter broadly margined on their external edges with grey; tail grey at the base, black for the remainder of its length; abdomen, under surface of the shoulder, and under tail-coverts white, crossed by numerous decided narrow bars of black; bill and feet black. The figures are of the natural size. [Illustration: PTEROPODOCYS PHASIANELLUS: _Gould_.