The sexes are only to be distinguished by dissection, and may be described thus: head, throat and back sooty grey; primaries and tail brownish black washed with grey; chest, all the under surface and rump pure white; irides brown; bill light bluish grey at the base, black at the tip; legs and feet mealy greenish grey.

The Plate represents a male, a female, two young ones and a nest of the natural size.

DICÆUM HIRUNDINACEUM.
J. & E. Gould del et lith. C. Hullmandel Imp.

DICÆUM HIRUNDINACEUM.
Swallow Dicæum.

Sylvia hirundinacea, Shaw, Nat. Misc., vol. iv. pl. 114.—Lath. Ind. Orn. Supp., p. lv.

Swallow Warbler, Lath. Gen. Syn. Supp., vol. ii. p. 250.—Shaw, Gen. Zool., vol. x. p. 613.

Pipra Desmaretii, Leach, Zool. Misc., vol. i. p. 94. pl. 41.

Crimson-throated Honey-sucker, Lewin, Birds of New Holl., pl. 7.

Desmaretian Manakin, Shaw, Gen. Zool., vol. x. p. 18.—Lath. Gen. Hist., vol. vii. p. 240.