Order Cydippidea Lesson 1843 



Order Lobata Eschscholtz 1829 



Order Cestoidea Lesson 1843 



Order Platyctenea Bourne 1900 

 Class Nuda Bourne 190O 



Order Beroidea Eschscholtz 1829 

 Subbranch Triploblastica Lankester 1900 

 Superseries Bilateria Schimkewitsch 1891 

 Series Enterocoela Lankester 1876 

 Subseries Acoelomata Schimkewitsch 1891 

 Phylum Platyhelminthes Gegenbaur 1859 

 Class Turbellaria Ehrenberg 1831 



Order Acoela Uljanin 1870 



Order Rhabdocoela Ehrenberg 1831 



Suborder Temnocephalida Haswell 1888 



Order Alloiocoela Graff 1882 (Alloeocoela Spengel 1884) 



Order Tricladida (Lang 1881) 



Order Polycladida (Lang 1881) Graff 1885 

 Class Trematoda Rudolphi 1808 

 Subclass Monogenea Carus 1863 



Order Monopisthocotylea Odhner 1912 



Order Polyopisthocotylea Odhner 1912 

 Subclass Aspidogastrea (Burmeister 1856) Monticelli 1892 

 Subclass Digenea Carus 1863 



Order Gasterostoma Odhner 1905 



Order Prosostomata Odhner 1905 

 Class Cestoidea Rudolphi 1808 

 Subclass Cestodaria Monticelli 1892 



Order Amphilinidea Poche 1922 



Order Gyrocotylidea Benham 1901 

 Subclass Cestoda van Beneden 1848 



Order Pseudophyllidea Carus 1863 



Order Cyclophyllidea Braun 1900 



Order Tetraphyllidea Braun 1900 



Order Trypanorhyncha Diesing 1863 



Order Heterophyllidea Southwell 1925 

 Phylum Nemertea Delle Chiaje 1841 

 Class Anopla Schultze 1852 



Order Paleonemertea Hubrecht 1879 



Order Heteronemertea Burger 1892 

 Qass Enopla Schultze 1852 



Order Hoplonemertea Hubrecht 1879 

 Suborder Monostilifera Brinkmann 1917 

 Suborder Polystilifera Brinkmann 1917 



Order Bellonemertea Coe 1905 

 Phylum Acanthocephala Rudolphi 1808 

 Class Eoacanthocephala Van Cleave 1936 



Order Gyracanthocephala Van Cleave 1936 



Order Neoacanthocephala Van Cleave 1936 

 Class Metacanthocephala Van Cleave 1948 



Order Palaeacanthocephala Meyer 1931 



Order Archiacanthocephala Meyer 1931 



[8] 



