174 



THREE CRUISES OF THE '' BLAKE. 



however, it is easy to distinguish the different forms. The 

 huge ctenophores float by, like luminous balls, among the 

 myriad lesser hghts caused by the smaller jelly-fish, while the 



Fig. 75. — Paguras Larva. 

 Greatlv magnified. 



Fig. TO. — Peneus Embryo. 

 Greatlv magnified. 



PhysaUa resemble fire-balloons on the surface, and spread the 

 phosphorescence in all directions. 



