Description: English: Reproductive system of Schmidtea polychroa (Platyhelminthes, Tricladida, Dugesiidae). Abbreviations: b, copulatory bursa or bursa copulatrix; bd, bursal duct, canal, or stalk; de, ejaculatory duct; gl, glands; gp, gonopore; m, mouth or oral aperture; od, oviduct or ovovitelline duct; pb, penis bulb; pp, penis papilla; vd, vas deferens or sperm duct; vs, seminal vesicle. After Böhmig (1909). Date: 27 October 2012, 13:11:28. Source: Freshwater planarians (Turbellaria) of North America (1972)
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+/−. Author: Roman Kenk.