6 THE NATURE OF ANIMAL LIGHT 



Antipatharia 



Alcyonaria , 



Alcyonium, Oorgonia, Isis, Mopsea 

 Pennatulacea 



Pennatula, Pteroides, Veretillwm, Cavemularia. 



Funioulwria, Renilla, Pavoncma, Stylohelemon, Umbellularia, 

 Yirgulariaf 

 Ctenophora (Comb- jellies) 

 Cydippida 



Pleuro hranehia. 

 Lobata 



Mnemiopsis, Bolinopsis, Leuoothea (Euoharis). 

 Gestida 



Ceatus. 

 Beroida 



Beroe. 



IV. Platyhelminthea 



Turbellaria (Flat-worms) 

 Trematodes (Parasitic fiat-worms) 

 Cestodes (Tape- worms) 

 Nemertinea ( Nemcrtines ) 



V. Nemathelminthes 



Nematoda (Round worms) 

 Gordiacea (Hair worms) 

 Acanthocephala ( Aeanthooephalids ) 

 Chietognatha (Sagitta) 



VI. Trochelminthea 



Eotifera (Wheel animalcules) 

 Gastrotricha (Cheetonotus) ) 

 Kinorhyncha ( Echinoderes ) 



VII. Molluscoidea 



Bryozoor (Corallines) 

 Entoprocta 

 Ectoprocta 



Membranipora, Scrupooellaria, Reteporaf Flustraf 

 Brachiopoda (Lamp shells) 

 Phoronidea (Phoronis) 



VIII. Armulata 



Arehiannelida (Primitive worms, including Dinophilus) 

 Chcetopoda (True worms) 



