KNIGHT and OMORI: LARVAL DEVELOPMENT OF SERGESTES SIMILIS 



Figure 1. — Sergestes similis. Nauplius I-IV, a-d, dorsal view; nauplius I, III-IV, e-g. lateral view without appendages. 



pairs of spines, outer pair tiny, relatively long 

 third pair armed with spinules and articulated 

 basally. 



Antennule (Fig. 2c) sometimes with a second 

 seta on inner margin, incipient segmentation, 

 and few rows of tiny spinules. 



Antenna (Fig. 3c) with incipient segmentation 

 of protopod and exopod sometimes visible; 

 exopod with 7 setae and small distal spine, distal 

 2 setae with small setules, other setae plumose; 

 endopod with 3 terminal setae and 1 seta on inner 

 margin. 



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