In this article we will discuss about Hymenolepis Nana. Morphology of Hymenolepis Nana: H. nana (Fig. 107.21) is a cosmopolitan parasite. It is small and measures up to 25-40 mm in length by one mm in diameter. Its scolex (Fig. 107.22) is minute, rhomboidal and has four suckers and a short rectractile rostellum armed with […]