Penaeus aztecus suUilis P^rez Farfante — Continued 



Description — Continued Page 



Thelycum 550 



Color 550 



Distribution and morphological variations 551 



Relationships 552 



Reproduction 554 



Subadult stage-sexual maturity 554 



Ovary development 554 



Postembryonic development 554 



Larvae, postlarvae, and juveniles 554 



Growth 554 



Sex differences in size 554 



Ecology 554 



Food 554 



Substrate 554 



Diel cycle 554 



Movements 554 



Effects of temperature 555 



Effects of salinity 555 



Enemies and diseases 555 



Commercial importance 555 



Penaeus paulensis P^rez Farfante 555 



Taxonomic remarks 556 



Study material 556 



Diagnosis 556 



Description 556 



Rostrum 556 



Carapace 557 



Antennules 557 



Antennae 557 



Thoracic appendages 557 



Abdomen 558 



Petasma 558 



Appendix masculina 558 



Thelycum 558 



Color 559 



Distribution and morphological variations 559 



Relationships 560 



Reproduction 560 



Subadult stage-sexual maturity 560 



Ovary development 560 



Spawning 560 



Postembryonic development 562 



Larvae, postlarvae, and juveniles 562 



Growth 562 



Sex differences in size 562 



Ecology 562 



Substrate 562 



Diel cycle 562 



Effects of temperature 562 



Effects of salinity 562 



Commercial importance 562 



Penaeus brasiliensis Latreille 562 



Taxonomic remarks 563 



Study material 563 



United States 563 



North Carolina 563 



Florida 563 



Bermuda Islands 564 



Bahamas 564 



Cuba 564 



VIII 



