Description This species is similar to P. rapa; but differs by the straight line of the sulcus (arrow), compare image of P. rapaAuthor Larsen, Jacob· PNG file - 116.28 kB - 434 x 230 pixelsadded on 2010-10-121 538 views This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License