Microglossus, Gffr.

The Macaw Cockatoo is thus designated because it unites the characteristics of the two genera known by these names. The distinguishing marks are as follows : The beak is larger than that of any other parrot, much longer than it is deep, opening wide, closely compressed at the sides; the ridge is almost like a keel, bent down in a half-circle, with a long narrow point, turned inwards, the sharp edge has a rounded bow, a rectangular indentation, and a very broad socket edge; the nostrils are round and small, and, like the cere and lores, covered with little velvety feathers; the tongue is dark-red, fleshy, cylindrical, the upper side having a spoon-like depression, with a horny black point, shaped like an acorn; the sides of the head and round the upper mandible, below the eye as far as the ear, and down to the base of the lower beak, featherless; the wings are rather long, with short points; the tail is long, broadly rounded off; the feet are powerful, short, and thick; the claws are not strong, and but little bent; the plumage is soft, each feather rounded off, mixed with powdery down; the crest consisting of long, narrow, finely-cut feathers, bent upwards and towards the back; at the base of the lower beak there are long feathers. In colour it is black, and in size larger than a raven.