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Show 556 MR. D. G. ELLIOT ON THE GENUS PTILOPUS. [May 7, to the tip. Back and rump yellowish green. Tail coppery green, apical half of lateral feathers greenish white. Bill yellow. Feet red. Iris orange-red. Total length 10 inches, wing 6, tail 3|, culmen f. 41. PTILOPUS AURANTIIFRONS. Ptilonopus aurantiifrons, Gray, Proc. Zool. Soc. 1858, p. 185, pl. 137; id. List Mamm. & B. New Guin. (1859) p. 45; Wall. Ibis, 1865, p. 380. Ptilopus aurantiicollis, Schleg. Mus. Pays-B. 1873, p. 18, Columbce. Ptilopus aurantiifrons, var. novce-guineee, Meyer, Sitz. Ak. Wiss. 1874, p. 508. Ptilopus aurantiifrons, Salvad. Ann. Mus. Civ. Gen.(1876) vol. ix. p. 197. Hab. Aru Islands, Mysol ( Wallace) ; Salwatty (Von Bosenberg); Batanta (Laglaize); New Guinea (Wallace, D'Albertis); Jobie (Meyer, Beccari). This is a very beautiful and very distinct species. Dr. Meyer (/. ci) has proposed to separate the bird from the mainland of New Guinea, procured at Passim, from that of Jobie, on account of some slight variation in the hues of the plumage, such as the deeper orange of the forehead and the orange tint of the back of the head and breast, with also metallic reflections of the top of the head. I do not deem these slight differences of sufficient importance to give New-Guinea specimens a distinct specific rank. Examples from Batanta before me seem to be intermediate between those of Jobie and Passim, with more orange tints than in individuals from Jobie, and less than in those of Passim. Adult. Forehead deep orange, rest of top and sides of head yellowish green. Throat pure white. Neck all around and upper part of breast leaden grey. Underparts yellowish green. Mantle and scapulars with some of the lesser wing-coverts grey, margined with green, some of the feathers of the mantle margined with orange. Rest of wing-coverts and secondaries yellowish green, margined with lemon-yellow. Primaries dark green, the first narrowed gradually to the tip. Back and upper tail-coverts yellowish green. Tail bronzy green, with a subterminal interrupted grey band; this band does not extend entirel}* across the outer web of each rectrix. Under surface smoky grey, with a light-grey apical band. Bill yellow; base swollen, red. Feet red. Iris orange. Total length 9^ inches, wing 5|, tail 2|, culmen J. 42. PTILOPUS ORNATUS. Ptilopus ornatus, Schleg. Nederl. Tijdsch. 1871, vol. iv. p. 52; id. Mus. Pays-B. 1873 p. 18, Columbce; Salvad. Ann. Mus. Civ. Genov. (1876) vol. ix. p. 197, et (1877) vol. x. p. 158. Hab. New Guinea, Mount Arfak (Bosenberg, Laglaize). This species seems to be entirely confined to the mainland of New |