PLATE XXVIII. 



Figs. 1 to 3. — Three successive stages in development of Plaice larvae in 

 the egg, magnified. 



Fig. 4. — Plaice larva hatching from egg, tail first. 



[Photo by Dr. F. Ward. 



Fig. 5. — Plaice Hatching-boxes at the Port Erin Biological Station. 



