Bill compressed, moderately deep; culmen much curved, red in colour; nostril elongate, longitudinal, a small naked space round the orbit. Feathers of forehead and throat spiny. Wing short, rounded, primaries scarcely longer than secondaries; tail very long, greatly graduated, the outer tail-feathers half or less than half the length of the median pair. Tarsus naked.
Only one species is included in this genus.