CACATUA TRITON. Triton Cockatoo. Psittacus galeritus (pt.), Less. Voy. Coquille, Zool. i. p. 624 (1828).—Id. Traité d’Orn. p. 182 (1831).—Id. Compl. Buff., Ois. p. 602 (1838).—S, Miill. Verh. Land- en Volkenk. pp. 21, 107 (1839-1844) Psittacus sulphureus, Less. (nec Gm.), Voy. Coquille, i. p. 625 (1828). Psittacus triton, Temm. Coup d’ceil gén. sur les Possess. Néerl. dans l’Inde Archip. ili. p. 405, note (1849) Plyctolophus sulphureus, Bp. (nec Gm.), Compt. Rend. xxx. p. 138 (1850). Plyctolophus luteocristatus, Bp. loc. cit. Plyctolophus triton, Bp. t. c. p. 1389.—Id. Rev. et Mag. de Zool. 1854, p- 156.—Id. Naumannia, 1856, Consp. Psitt. sp. 278.—Id. Compt. Rend. xliv. p. 537 (1857). Cacatua cyanopsis, Blyth, Journ. As. Soc. Beng. xxv. p. 447 (1856). Cacatua triton, Sclater, Journ. Linn. Soc. ii. p. 166 (1858)—Gray, Proc. Zool. Soc. 1858, pp. 184, 195.—Id. Cat. Birds New Guinea, pp. 43, 60 (1859).—Id. Proc. Zool. Brit. Mus. p. 94 (1859).—Sclater, Proc. Zool. Soc. 1860, p. Sclater, Proc. Zool. Soc. 1864, p. 188.—Wallace, t. c. p. Soc. 1859, p. 159.—Id. List of Psittacide in 227.—Gray, Proc. Zool. Soc. 1861, p. 437.— 280.—Schl. Mus. Pays-Bas, Psittaci, p. 133 (1864).—Sclater, Ann. & Mag. N. H. (3) xv. p. 74 (1865).—Finsch, Neu-Guinea, p. 159 (1865).—Schl. Ned. Tijdschr. iii. p. 320 (1866)—Rosenb. Reis. naar Zuidoostereil. pp. 13, 19, 48 (1867).— Gray, Hand- list B. i. p. 169, no. 8387 (1870).—Rosenb. Reis. naar Geelvinkb. pp. 36, 56, 83, 113 (1875).—Salvad. Ann. Mus. Civic. Genov. vil. p. 753 (1875), ix. p. 11 (1876), x. p. 24 (1877).—D’Albert. Ann. Mus. Civic. Genov. x. p. 19 (1877).—Id. & Salvad. op. cit. xiv. p. 28 (1879)—Ramsay, Proc. Linn. Soc. N.S. W. iii. p. 250 (1879).—Rosenb. Malay. Arch. pp. 371, 396 (1879).—Salvad. Orn. Papuasia e delle Molucche, i. p. 94 (1880). Plyctolophus macrolophus, Rosenb. Nat. Tijdschr. Neder]. Ind. xxiii. p. 45 (1861).—Id. J. f. O. 1861, p. 45. Plyctolophus equatorialis, Rosenb. J. f. O. 1862, p. 63—Id. Nat. Tijdschr. Nederl. Ind. xxv. pp. 142, 143 (1863).—Id. J. f. O. 1864, p. 116. Plyctolophus triton, Rosenb. J. f. O. 1862, pp. 63, 65.—Bernst. Nat. Tijdschr. Nederl. Ind. xxvii. p. 297 (1864). Cacatua eleonora, Finsch, Nederl. Tijdschr. Dierk. Berigten, p. xxi (1863). Cacatua macrolopha, Wall. P. Z. S. 1864, p. 280.—Schl. Dierent. p. 82 (1864).—Finusch, Neu-Guinea, p. 159 (1865).—Gray, Hand-list B. ii. p. 169, no. 8393 (1870). Cacatua galericulata, Rosenb. Reis. naar Zuidoostereil. pp. 99, 100 (1867). Plictolophus triton, Finsch, Die Papag. i. p. 291 (1867), ii. p. 941 (1868).—Meyer, Sitz. Isis Dresd. 1875, p. 75— Sharpe, Journ. Linn. Soc., Zool. xiii. p. 490 (1878). Wuen dried skins only are examined it is not easy to distinguish this Cockatoo from its Australian representative Cacatua galerita; but when living individuals of the two species are compared together, the colour of the naked blue skin that surrounds the eye renders the present bird at once remarkable. It is besides slightly smaller in size than Cacatua galerita, and has usually rather a stronger bill. In other respects the Triton Cockatoo exactly resembles the well-known Sulphur-breasted Cockatoo of the Australian continent. Although confounded with C. galerita by some of the older authors, the Triton Cockatoo was recognized as distinct by Temminck in 1849, and named after one of the Dutch surveying-vessels which first visited the coasts of New. Guinea. It appears to be found all over that large island, and to be, in some places, very abundant. The numerous flocks of white Cockatoos which Dr. Solomon Miller observed on the south- western coasts of New Guinea, near Triton Bay, were doubtless of this species, although that celebrated explorer did not distinguish them from C. galerita. There are fine STH of specimens ot this Cockatoo from the islands of Waigiou and Guebé in the Leyden Museum, and c the same collection Sy also the type of Cacatua eleonora of Dr. Finsch, originally described from the living bird in the Zoological Gardens of Amsterdam. It likewise occurs in the islands of Geelvink Bay, Salwati, Mysol, the Aru Islands, Goram, and Manuwolka, and is met with in the Louisiade Islands. oe : : ‘ : Our figure of this species is taken from a fine example Do living in the Fa ee of the Zoological Society of London. This individual was brought home from New Guinea by Mr. C. T. Kettlewell, .Z.8., in his yacht ‘ Marquesa,’ and presented to the Society in April 1884. [R. B. S.J