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Show 1885.j DR. GUILLEMARD O N BIRDS OF T H E 'MARCHESA.' 615 considered by Dr. Finsch as the young male of Ps. passerina, but which I believe to be a distinct species. It may be described as follows :- PSITTACULA CYANOCHLORA. (Plate XXXVIII. fig. 2.) 3 • Supra psittacino-viridis, nonnihil obscurius adumbrata ; capitis lateribus et gastrao toto dilutius et subfiavescenti-viridibus; tergo, uropygio et supracaudalibus pulchre smaragdino-viri-dibus; rectricibus viridibus, pogoniis internis marginem versus fiavicantibus; alarum tectricibus minoribus dorso concoloribus majoribus (remig. sec. ord.) cyanescentibus, in malachitaceum ver-gentibus, nonnullis subelongatis et angustatis, cobaltino-caruleis subalaribus pulchre et extense cobaltinis ; margine interno atari e malachitaceo viridi ; rostro toto pallido ; pedibus incarnatis crassitie Ps. passerinse. Hab. Rio Brancho (Natterer). There is a young male Ps. passerina in the Bremen Collection which resembles Ps. cyanochlora in most respects. But there are some differences, and amongst them there is one which I consider to be rather important. In this " young male " of Caracas the cobalt-blue spot on the subalares is very small and has evidently not yet reached its full extension. In cyanochlora you will observe that the cobalt-blue of the subalares has the greatest possible extension, just as in the old male of passerina. Now this is very curious, and very much in favour of m y opinion. The colour of the tectric. major, is very similar in the Caracas bird and in Ps. cyanochlora, but it is brighter in the latter. The curious one or two narrow elongated dark-blue feathers are to be found in both birds. The emerald-green colour of the rump is also the same in both birds, it being only a little brighter in Ps. cyanochlora. The green colour of the upper parts is much lighter and purer in the Caracas bird, and the sides of the head and the whole under - parts are of a different green, finer, more emerald, and less ellowish than in Ps. cyanochlora. 2. Report on the Collection of Birds formed during the Voyage of the Yacht ' Marchesa/-Part VI. New Guinea and the Papuan Islands. By F. H. H. GUILLEMARD, M.A., M.D., F.L.S., &c. [Received June 2, 1885.] (Plate XXXIX.) The ' Marchesa,' on leaving the Moluccas, proceeded to the islands lying off the north-west coast of New Guinea. Batanta and Waigiou were first visited ; and from the former, in the neighbourhood of a fine bay discovered at the east end (which was roughly surveyed, 40* |