Fasciolidae iyali ne na tsutsotsin tsutsotsi masu kwari, wanda aka fi sani da flukes hanta. Wadannan tsutsotsi suna cutar da hanta na dabbobi masu shayarwa daban-daban, ciki har da mutane, kuma suna iya haifar da cututtuka masu tsanani kamar fascioliasis. Iyalin sun haɗa da manyan jigogi guda biyu, Fasciola da Fascioloides.
