Description Stylodrilus sanguineus, genital area in ventral view showing the muscular atria. Collected at Duno fonteinalle, a springbrook near Heveadorp, The Netherlands (18.ix.2006, N51° 58’ 10.39” E5° 48’ 12.22”). Author van Haaren, TonJPG file - 731.74 kB - 1 596 x 1 196 pixelsadded on 2019-04-271 073 views This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License