Description Reconstruction of the atrial organs of G. simplex, seen from the left (after Schockaert & Brunet, 1971).Author Artois, TomPNG file - 180.28 kB - 862 x 496 pixelsadded on 2018-03-011 332 views This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License