1. Rotifera, Acanthocephala and Seisonida make up a clade called Syndermata. 2. The Acanthocephala were thought to be a discrete phylum. 3. "' Tenuisentidae "'is a family of parasitic worms from the phylum Acanthocephala . 4. The Acanthocephala , previously considered to be a separate phylum, have been demonstrated to be modified rotifers. 5. Invertebrates also include the Acanthocephala or spiny-headed worms, the Gnathostomulida, Micrognathozoa, and the Cycliophora. 6. "' Neoechinorhynchida "'is an order of parasitic worms from the ( phylum Acanthocephala ). 7. "' Polyacanthorhynchidae "'is a family of parasitic worms from the ( phylum Acanthocephala ). 8. These include Cestoda ( tapeworms ), Acanthocephala ( thorny headed worms ), Nematoda ( roundworms ), Digenea and Spirurida. 9. Several species of endoparasitic Acanthocephala and Nematoda such as " Hispaniolepis fedtschenkoi ", have been described from the species. 10. ""'Moniliformis moniliformis " "'is a parasite of the Acanthocephala phylum in the family Moniliformidae.