CONTENTS 



Page 



ACKNOWLEDGMENTS x 



GENUS PENAEUS FABRICIUS 462 



Diagnosis 462 



Ke}' to the subgenera of the genus Penaeus 464 



Subgenus Lilopenaeus 466 



Diagnosis 466 



Etymology 466 



List of species 466 



Subgenus Penaeus 466 



Diagnosis 466 



List of species 466 



Subgenus Fenneropenaeus 466 



Diagnosis 466 



Etymology 466 



List of species 466 



Subgenus Melicerlus 466 



Diagnosis 466 



List of species 467 



Remarlis on subgenera 467 



Key to the western Atlantic species of Penaeus 467 



Penaeus setiferus (Linnaeus) 468 



Taxonomic remarks 470 



Study material 470 



United States 470 



New Jersey 470 



Maryland 470 



Virginia 470 



North Carolina 471 



South Carolina 471 



Georgia 471 



Florida 471 



Alabama 471 



Mississippi 471 



Louisiana 471 



Texas 471 



Mexico 471 



Tamaulipas 471 



Veracruz 471 



Tabasco 472 



Campeche 472 



Diagnosis 472 



Description 472 



Rostrum 472 



Carapace 472 



Antennules 472 



Antennae 473 



Thoracic appendages 473 



Abdomen 473 



Petasma . 473 



Appendix masculina 474 



Spermatophore _. 474 



Thelycum 474 



Color 475 



