Description Reproductive system. A. P. kepneri, typhloplanoid rhabdocoel of the eastern United States (from slide, courtesy of Prof. U. Dahlgren). B. Cirrus of P. kepneri in the resting state; note seminal and prostatic vesicles side by side in the penis bulb. C. Cirrus everted to form a copulatory organ (B,C after Gilbert, 1935)Author Hyman, 1951GIF file - 21.17 kB - 508 x 634 pixelsadded on 2017-04-0745 viewsWoRMS taxaScan of photoPhaenocora kepneri Gilbert, 1935checked Tyler, Seth 2017-04-07 This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License