1. ATE 



Figs. I and 2. LnoJii'i-n friu'iutti var. ulothnx. Successive stages in the 



development <>t the medusa, Toriugas, Florida, June, i8q~. 

 Fig. 3. Lnndui-n cr tic nit n var. itlntlin\. Oral \'ie\v ot gonads of a female 



medusa. Nassau Harbor, Bahamas, June, 1903. 

 Fig. 4. Mt'liiiTtuin campanula, young medusa. Nahant, Massachusetts, 



May 6, 1898. 

 Fig. 5. Melicertum campanula, mature male. Marblehead, Massachusetts, 



|ul\- n, i goo. 



l^rawn from lite, bv the author. 



