CONTENTS 



Page 



Introduction 321 



Methods and materials 321 



Plankton collections 321 



Rearing experiments 321 



First experiment 322 



Second experiment 323 



Third experiment 324 



Fourth experiment 324 



Conclusions 324 



Egg and larval stages 325 



Abbreviations used in illustrations 325 



Egg 325 



First nauplius 325 



Second nauplius 327 



Third nauplius 328 



Fourth nauplius 329 



Fifth nauplius 329 



First protozoea : 330 



Second protozoea ^ 333 



Third protozoea 335 



First mysis 335 



Second mysis 338 



Third mysis 340 



First postlarva 340 



Second postlarva 343 



Advanced postlarvae 343 



Discussion 345 



Comparison with Penaeus seliferus 345 



Comparison with Penaeus azlecus 347 



Summary 348 



References 348 



III 



