BY. DR. R. VON LENDENPELD. 229 



Stomodoca. L. Agassiz. 

 Panthaea. Lesson. 

 Conis. Brandt. 

 Tiara. Lesson. 

 Tunis. Lesson. 

 Catablema. - Haeckel. 

 Turritopsis. McCrady. 

 Callitiara. Haeckel 

 Corydendrium Van. Beneden 1 



III. SUB-FAMILY. MARGELIN^E. 

 Margelidse. Haeckel, with the exceptian of Haeckel's Genera 

 Cytaeis, Cubogaster, Dysinorphosa, Cytasandra.) 



Anthoniedusae, with simple or branched moutharms. Gonade 

 divided into four or eight marginal flaps. The Medusae bud on 

 Colonies of Polypes, which contain alimentary Zooids, with a 

 verticil of filiform tentacles. 



Lizusa. Haeckel. 



Lizzia. Forbes. 



Lizzella. Haeckel. 



Thamnitis Haeckel. 



Thamnostylus. Haeckel. 



Thamnostoma. Haeckel. 



Limnorea. Peron. 



Margelis. Steenstrup. 



Hippocrene. Mertens. 



Nemopsis. L. Agassiz 1 



Margelium. Haeckel. 



Rathkea. Brandt. 



IV. SUB-FAMILY. CLADONEMIN^E. 

 CLADONEMID^E. Gegenbaur. 

 Anthoniedusae, with branched tentacles, with 4 — 8 simple or 

 branched Radial Canals, and four or four pair of gastral Gonads. 

 The Medusae bud on Polypecolonies which contain alimentary 

 Zooids, with scattered capitate tentacles. 

 Pteronema. Haeckel. 

 Zanclea. Gegenbaur. 



