Gonopod of male "Polydesmus (Polydesmus) granulatus". Wood writes: "I dissected the sexual organs of the only male which has come under my notice, but unfortunately the detailed description was lost at the Smithsonian fire. If my memory serves me right, the proximal portion of the spine is robust and very nearly straight; its distal extremity (Fig. 41) is swollen into a sort of knob-like process, from which arise two slender curved processes, one of which is slightly bifid, whilst the other is remarkable for being articulated by means of a moveable joint."