A single skin of this bird was contained in a large collection of birds, made, in 1877, during an expedition to Macassar and the neighboring isle of Saleyer, under the leading of the well known botanical traveller, Mr. Teysman. The bird in question belongs evidently to the group of the Timaliae, strongly characterized like the whole tribe of Formicivorae to which it belongs by the vaulded form of the tail, a characteristic which is found back in the owls in a most remarkable way.