FIGURE 3 in Two new species of Scalithrium (Cestoda: Rhinebothriidea) from rajiform batoids of the Argentine Sea

FIGURE 3. Cross sections of terminal mature proglottid of Scalithrium kirchneri sp. nov. from Rioraja agassizii (paratype MACN-Pa 758/13). A. cross section at the level of testes; B. cross section at the level of the genital pore; C. cross section at the level of the seminal receptacle; D. cross section at the level of the ovarian isthmus. Abbreviations: dod, dorsal osmoregulatory duct; ov, ovary; sr, seminal receptacle; t, testes; ut, uterus; vd, vas deferens; vf, vitelline follicle; vg, vagina; vod, ventral osmoregulatory duct; vs, vaginal sphincter.