Southwest Pacific: known from several sites but probably extends from Toro Pass near the mouth of the Fly River (Papua New Guinea) to Vogelkop Peninsula, Irian Jaya, and from Woods Inlet in Darwin Harbor, Australia
Definition: length from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body