SIMPLIFIED LIST OF RECENT CLASSES AND ORDERS 12 



Class Subcl Order 



Ceriantipatharia 



Antipatharia black-corals, thomy-corals 



Ceriantharia 



CTENOPHORA 



comb-jellies, sea-walnuts 



TENTACULATA 



Cydippida 

 Lobata 

 Cestida 

 Platyctenea 



NUDA 



Beroida 



PLATYH ELMINTHES 



flatworms 



TURBELLARIA planarians 

 Acoela 

 Rhabdocoela 

 Alloeocoela 

 Tricladida triclads 

 Polycladida polyclads 



TREMATODA flukes 

 Monogenea 

 Aspidogastrea 

 Digenea 



CESTODA tapeworms 



Proteocephala 



Tetraphyllidea 



Disculicepitidea 



Lecanicephala 



Trypanorhyncha 



Cyclophyllidea 



Aporidea 



Nippotaeniidea 



Caryophyllidea 



Spathebothridea 



Pseudophyllidea 



CESTODARIA 



Amphilinidea 

 Gyrocotylidea 

 Biporophyllidea 



