Plagiorhynchidae is a family of parasitic Acanthocephalan worms. The duck is the definitive host for the acanthocephalan parasite. Echinorhynchidae is a family of acanthocephalan parasitic worms from the order Echinorhynchida. The Moonrat is a host of the Acanthocephalan intestinal parasite "Moniliformis echinosorexi". This species is parasitised by the moorhen flea, "Dasypsyllus gallinulae" and the acanthocephalan "Apororhynchus silesiacus". The silky anteater is a host of the acanthocephalan intestinal parasite "Gigantorhynchus echinodiscus". The European roller is a host of the Acanthocephalan intestinal parasite "Moniliformis gracilis". Horsfield's tarsier is a host of the Acanthocephalan intestinal parasite "Moniliformis tarsii". The Namaqua sandgrouse is a host of the Acanthocephalan intestinal parasite "Moniliformis kalahariensis". The Large flying fox is a host of the Acanthocephalan intestinal parasite "Moniliformis convolutus". The North African hedgehog is a host of the Acanthocephalan intestinal parasite "Moniliformis aegyptiacus". The Southern African hedgehog is a host of the Acanthocephalan intestinal parasite "Moniliformis kalahariensis". The Cairo spiny mouse is a host of the Acanthocephalan intestinal parasite "Moniliformis acomysi". The Olive grass mouse is a host of the Acanthocephalan intestinal parasite "Moniliformis amini". The Long-eared hedgehog is a host of the Acanthocephalan intestinal parasite "Moniliformis cryptosaudi".