Mayek. — Tortugaa Medusie. 



PLATE 29. 



Fig. 98. Diphyopsis hispaniana, nov. sp. 

 Fig. 99. " " Portion of the siphosome. 



Fig. 100. Ersa^a hispaniana, nov. sp. The monogastric, sexual generation of 

 Diphyopsis hispaniana. (ij) gonophore. 



