Figure 4 in Suborders Acotylea and Cotylea (Polycladida): Study on morphological, ecological and reproductive features of some representative species from Tunisian coasts (Mediterranean)

Figure 4. Copulatory apparatus in Discocelis tigrina. A: ventral view showing by transparency the ruffled pharynx (ph), the two uteri (ut), the two vasa deferentia, the common gonopore (cg), the common atrium (ca), the prostatoid organs (po) and the Lang's vesicle (Lv), scale bar: 0.5 mm. B: Section through common copulatory com; mon atrium (ca) showing prostatoid organs (po), vagina (v), uterus (ut) and vas deferens (vd) scale bar: 0.1 mm C: Diagrammatic reconstruction of copulatory apparatus. common gonopore (cg), common atrium (ca), ejaculatory duct (ed), Lang's vesicle (Lv), Penis (p) and prostatoid organs (po), scale bar: 0.1 mm.