49 



CRUSTACEAN LARV.E. 



Nauplius larva with three pairs of appendages, the future ist antennae (uniramous), 2nd 

 antennae and mandibles (biramous) ; the single median eye. The unjointed carapace may be prolonged 

 into long spines. 



* 



Zoaea larva, cephalothoracic shield with spines ; free abdominal segments ; forked telson ; com- 

 pound stalked eyes. 



The appendages in a typical Zoaea are: 



Two pairs of antennae. 

 Mandibles without palp. 

 Two pairs of maxillae. 

 Two pairs of maxillipeds. 



