PLATE 3 



EXPLANATION OF FIGURES 



Drawing of eggs of coelenterates showing form and size of egg and nucleus at 

 the end of the growth period. The eggs are arranged in the order of the relative 

 volume of nucleus and egg. All drawn to the same scale, X 103. 



15 Starfish egg, introduced for comparison of relative size and volume of 

 egg and nucleus, with coelenterate eggs. 



16 Nausithoe punctata. 



17 Hydractinia echinata. 



18 Pelagia noctiluca. 



19 Obeliasp? 



20 Aglantha digitalis. 



21 Campanularia flexuosa. 



22 Gonothyraea loveni. 



23 Aurelia fiavidula. 



24 Clava leptostyla. 



25 Corymorpha pendula. 



26 Hydra sp? 



27 Eudendrium ramosum. 



28 Pennaria tiarella. 



29 Hybocodon prolifer. 



30 Tubularia crocea. 



