EXPLANATION OF PLATES. 



(All the figures have been drawn on stone from micro-photograplis, and art- 

 magnified about 20 times, with the exception of Figs. i8, 19. 21 and 17, which last 

 is natural size.) 



Plate I. 



Fig. I. Unfertilized egg of C//n'Sc)/'/;n'.srf/i)6/cr/>5 (White Stumpnose). 



2. Another showing formation of germinal disc. 



3. Fertilised egg showing germinal disc divided into about 32 parts. 



4. Later stage showing spreading out of germinal disc, side view. 



5. The same, ventral view. 

 6 and 7. Side and ventral view of developing embryo. 



8. Newly-hatched larva of White Stumpnose. 



9. Larva two days later. 



10. Larva six da>s later. 



11. Fertilized egg of Cfiiysophiys gibhiccps (Red Stumpnose). 



12. Later stage showing embryo. 

 ,, 13. Newly-hatched larva of Red Stumpnose. 

 ,, 14. Fertilized egg of Trigla kumu (Red Gurnard). 



15. Newly-hatched larva of Red Gurnard. 



,, 16. Egg of Achinis capetisis. 



