FIGURE 4 in Five new species of cotylean flatworms (Platyhelminthes: Polycladida: Cotylea) from Oaxaca, southern Mexican Pacific

FIGURE 4. Boninia oaxaquensis sp. nov. A,C–E (holotype UMAR PLAT-018), B (paratype UMAR PLAT-024). A, C–E. Male and female reproductive systems, in sagittal histological sections; B. Male and female reproductive systems, in frontal histological sections. Structures: cg= cement gland, dvl= duct of Lang´s vesicle, ed= ejaculatory duct, fg= female gonopore, lv= Lang´s vesicle, ma= male antrum, mg= male gonopore; ovi= oviducts, p= pharynx, po= prostatoid organs, pp= penis papilla, st= stylet, spv= spermiducal vesicle, va= vagina, u= uterus.