The Flatworms (Platyhelminthes) - phylum
(Catenulida)

()

()

()

()
(Cestoda)

(Diphyllobothrium)

(Taenia)
(Monogenea)

()

()

()

()
(Rhabditophora)

()

()

()

()
(Trematoda)

(Aspidogastrea)

(Digenea)
(Turbellaria)

(Microstomum)