EXPLANATION OF PLATES. 



(All the ti^iucs have been drawn on stone from micro-photographs, and arc 

 magnified about 20 times, with the exception of F"igs. 18, 19, 21 and 17, which last 

 is natural size.) 



Plate I. 



Fi 



Unfertilized egg of Cliiysopluys globiccps (White Stumpnose). 



Another showing formation of germinal disc. 



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. Xewly-hatched larva of White Stumpnose. 

 Q. Larva two days later. 



10. Larva six dajs later. 



11. Fertilized egg of Clnjsopliiys gihbiccpx (Ked Stumpnose). 



12. Later stage showing embryo. 



13. Xewly-hatched larva of Ked Stumpnose. 



14. P'ertilized egg of Trigla kuviii (Ked Gurnard). 



15. Newly-hatched larva of Ked Gurnard. 



16. Egg of Acliiriis capensis. 



