Face, crown of the head and throat blackish brown, tinged with rufous, giving it a striated appearance, bounded in front above the nostrils with whitish; feathers at the back of the head, which are lengthened into a short occipital crest, back of the head, back, and sides of the neck, all the under surface, thighs and under tail-coverts rufous, all but the thighs and under tail-coverts with a stripe of black down the centre of each feather; back, rump and wings brown, the centre of the wing lighter; primaries brownish black, becoming darker at the tip, and barred throughout with greyish buff, which is conspicuous on the under surface, but scarcely perceptible on the upper, except at the base of the inner webs; under surface of the wing mottled with reddish brown and black; tail mottled greyish brown, crossed by seven or eight distinct bars of blackish brown, the tips being lighter; cere and bill lead-colour, passing into black at the tip; eye reddish hazel, surrounded by a narrow blackish brown eyelash; feet and toes very light lead-colour. The figure is about three-fourths of the natural size. [Illustration: ICHTHYIAËTUS LEUCOGASTER. _J & E Gould del^t_ _C. Hullmandel Imp._ ] ICHTHYIAËTUS LEUCOGASTER. White-bellied Sea-eagle. _Falco leucogaster_, Lath. Ind. Orn., vol. i. p. 13.—Gmel. Linn., vol. i. p. 157.—Temm. Pl. Col. 49. _White-bellied Eagle_, Lath. Gen. Syn., vol. i. p. 33.—Ib. Gen. Hist., vol. i. p. 242. _Haliæetus leucogaster_, Gould, Syn. Birds of Australia, Part III. _—— —— sphenurus_, Gould in Proc. of Zool. Soc., Part V. 1837, p. 138.—Ib. Syn. Birds of Australia, Part III. young.