PLATE LXIX. 



Sergestes atlanticus (p. 393). 

 r p,p. First pair of pleopoda of male, with petasrnata united in the median line. 

 q $. Second pleopod ; appendages attached to the base of the flagella. 

 2?. Second pleopod ; appendage attached to the base of the flagella. 

 v. Sixth pleopod. 

 z. Telson. 



