1. The epiphallus is shorter and slightly widening at its posterior end. 2. Retractor penis inserts at the boundary between the penis and epiphallus . 3. The vas deferens connects the spermoviduct to the epiphallus . 4. The vas deferens opening is clearly asymmetrically at the posterior end of epiphallus . 5. Transition to the epiphallus with a kink, thereafter gradually tapering; twisted. 6. The epiphallus then opens to the genital atrium. 7. The vas deferens of specific length opens into the posterior end of the epiphallus . 8. Reproductive system : Penis is elongate and broader than vagina, epiphallus and spermatheca. 9. Reproductive system : The penis is rounded, and half as long as the epiphallus . 10. In Tandonia, the retractor penis inserts at the boundary between the penis and epiphallus .
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