EXPLANATION OF THE PLATES. 



PLATE 1. 



1. Tiara oceanica, sp. nov. 



2. Turns pelagica, sp. nov. 



3. Psijthia prolifera, gen. et sp. nov. 



4. Epenthesis rangirocB, sp. nov. 



PLATE 2. 



Phortis e.lliceana, sp. nov. 



" " Gastric portion of the proboscis. 



" " Portion of the bell-margin. 



BougainvUiia fulva Agassiz imd Mature medusa. 



Mayer. 

 Lymnorea ocellata, sp. nov. Side view of mature medusa. 



" " Side view of a tentacle-bulb, showing the ec- 



todermal ocellus. 

 " " Terminal portion of one of the oral tentacles. 



" " Nematocyst capsules on the terminal portion 



of one of the oral tentacles. 



PLATE 3. 



Fig. 13. Dlpleiirosoma pacijica, sp. nov. Oral view of mature medusa. 



" 14. " " Portion of the bell-margin. 



" 13. Rhefjmatodes lacteus, sp. nov. 



" 16. " " Portion of the bell-margin. 



PLATE 4. 



Fig. 17. Geryones mexkana, sp. nov. Immature medusa. 



" 18. Carmaris rosea, sp. nov. 



" 19. Zonephyra corona, sp. nov. Side view of mature medusa. 



« 20. " " Oral view of one of the marginal sense or- 



gans. 



