FIGURE 7 in Observations on the terrestrial leech Haemopis septagon Sawyer & Shelley, 1976 (Annelida: Hirudinea) from the Outer Banks, North Carolina, USA, with a revision of the species

FIGURE 7. Haemopis septagon Sawyer & Shelley, 1976. Reproductive system of Haemopis septagon from the Albemarle Peninsula, North Carolina. Comparison of the reproductive structures of A. terrestrial individual (HS-4), B. "aquatic" individual (HS-3), and C. juvenile individual (HS-5). For clarity the intertwining male and female ducts are separated and drawn semischematically to same relative scale. Note as the individuals mature the penis sheath and vaginal stalk extend progressively to the posterior, coupled with increased twisting of these structures. The simplest condition is found in the juvenile. In this species precise location of the point of flexion of the penis sheath and vaginal stalk is not species specific per se and therefore is of little taxonomic significance. e, epididymis; eb, ejaculatory bulb; ed, ejaculatory duct; gXI, ganglion of segment XI; gXV, ganglion of segment XV; gXIV, ganglion of segment XIV; o, ovisac; od, common oviduct; pr, prostate; ps, penis sheath; vc, vaginal caecum; vs, vaginal stalk.