Bill very long, excessively depressed, being when viewed laterally very slender, but when seen from above nearly as broad as the head at the base, considerably contracted in the middle, and at the end expanded into a large obovate disk much broader than the head. Upper mandible with the dorsal outline almost straight, descending at the base, at the tip decurved, the ridge extremely broad and flat, gradually widening beyond the nostrils, at the end terminated by the very small, decurved, blunt claw; the sides declinate at the base, horizontally flattened towards the end, separated in their whole length from the ridge by a narrow groove, their margins soft and blunt. Nostrils basal, oblong-linear, of moderate size. Lower mandible with the angle very long, narrow, rounded, the crura narrow, and gradually flattened, the extremity expanded into a flattened disk as in the upper. The mandibles are covered with soft skin, which for half their length is rough with roundish plates having their anterior margin somewhat prominent. Head of moderate size, flattened above. Neck long and slender. Body compact, ovate. Legs long and rather slender; tibia bare in its lower half, and reticulate; tarsus rather long, stout, roundish, covered all round with reticulated subhexagonal scales; toes rather long, moderately stout, covered above with numerous scutella, but at the base reticulated; first more slender, articulated on the same plane; second considerably shorter than third, which is in the same proportion exceeded by the fourth. Claws moderate, arched, compressed, laterally grooved, rather obtuse. The head, gular sac, and a small part of the neck, destitute of feathers. Those on the neck linear or lanceolate, small, with disunited barbs; a tuft on the lower and fore part of the neck recurved and silky. The feathers on the other parts are of moderate length, ovate, rather compact above, blended beneath. Wings long and very broad; primaries firm, broad, tapering, but rounded, the second longest, the third next, the first a quarter of an inch shorter; secondaries broad and broadly rounded. Tail short, even, of twelve rather broad, abruptly rounded feathers.