On Strix tenebricosa arfaki

This bird is, in New-Guinea, the representant of Strix tenebricosa, Gould, from South-Eastern Australia. Closely resembling the latter, it differs however by its smaller size, by the white spots of the feathers being larger and more regular orbicular, and by the light sooty brown color of the face strongly inclining to white. The measures (in French measure) of the principal parts are as follow —