FIGURE 4. Micrographs of transverse histological sections of Rhinebothrium tetralobatum (MZUSP 7930a–7930c, Vouchers). A. Section at level of testes, B. Section at level of ovary. Abbreviations: Ed. Excretory duct, O. Ovary, T. Testis, U. Uterus, Vd. Vas deferens, Vit. Vitelline follicle.