In Acanthocephala. the ovarian balls (floating ovaries) are distinctive structures found suspended in the fluid-filled metasoma of females and are responsible for egg production and maturation. Those structures have not been studied in Rhadinorhynchus niloticus. We aimed to investigate their ultra-structure by means of scanning and transmission electron microscopy. https://www.bekindtopets.com/great-pick-Nobivac-Feline-1-HCPCh-special-find/