CRUSTACEA 221 



1 tooth on carapace behind orbit; carpus of second 



leg longer than palm and half fingers carolinus. 



Outer antennular flagellum with free part of 

 shorter ramus IV2 times as long as fused part; 2 

 teeth generally present in carapace behind orbit; 

 carpus of second leg not longer than palm in adult 

 female, in male not longer than palm and 1/3 of 

 fingers vulgaris. 



Penaeus setiferus Linne (Southern Shrimp) 



Fig. 39 



This is the common shrimp of southern waters 

 and is highly valued as food. Although it does not 

 not occur in commercial numbers north of Chesa- 

 peake Bay, it is occasionally found in New Jersey 

 waters. When full grown it normally reaches about 

 6 inches in length; some abnormally large individ- 

 uals have been taken from New Jersey waters, one 

 measuring 11 inches. 



Penaeus brasiliensis Latreille (Brazilian Shrimp 



or Prawn) 



Differs from the above by having a groove on 

 each side of the ridge which runs through the center 

 and whole length of the carapace. Much rarer than 

 the above and not seen in New Jersey for many 

 years; frequents brackish and fresh water along the 

 southern coast. Of less commercial value because 

 it cannot be shipped in a fresh condition. 



