386 



DISCOVERY REPORTS 



Stage II. Length 8-9 mm. (Figs. 96, 97). 



Rostrum stouter, in some cases with three or four very minute dorsal teeth, but 

 generally smooth. Carapace with supra-orbital spine. Telson marked off from somite 6 

 but with the same shape and number of spines. Anal spine present. 



Fig. 96. Stage II. 



Chorismus antarcticus 

 Fig. 97. Stage II, mandible. 



Fig. 98. Stage III. 



Antennule with peduncle segmented. Antennal scale unsegmented and with outer 

 apical spine ; flagellum longer than in stage I and without apical spine. 



Legs much more developed, legs i and 2 with chelae; exopods of legs 1-3 with 

 setae. 



Pleopods present, small. 



