Ixvi INTRODUCTION. 



Family II. Hydractiniidae. 

 HYDRACTINIA, Van Beneden. 



Family III. Podocorynidse. 



PODOCORYNE, Sars. 

 CORYNOPSIS, Allman. 



? CIONISTES, Wright. 



Family IV. Laridae. 

 LAR, Gosse. 



Family V. Corynidse. 



CORYNE, Gaertner. 

 SYNCORYNE, Ehrenberg. 



ZANCLEA, Gegenbaur. 



Family VI. Stauridiidse. 

 CLADONEMA, Dujarclin. ] STAURIDIUM, Dujardin. 



Family VII. Clavatellidse. 

 CLAVATELLA, Hincks. 



Family VIII. Myriothelidae. 

 MYRIOTHELA, Sars. 



Family IX. Eudendriidae. 

 EUDENDRIUM, Elireuberg. 



Family X. Atractylidse. 



ATRACTYLIS, Wright. 

 PERIGONIMUS, Sars. 

 HYDRANTHEA, Hincks. 

 GARVEIA, Wright. 



BIMERIA, Wright. 

 DICORYNE, Allman. 

 HETEROCORDYLE, Allman, 

 BOUGAINVILLIA, Lesson. 



Family XI. Tubulariidae. 



TUBULARIA, Linn. CORYMORPHA^ Sars. 



ECTOPLEURA, Agassiz. 



