5{4) Innersetamiddlesegmentendopodfourthleg(PJ present (Fig. 1.3) .... Canae/Za (fusiform nonprehensile) 



5(-/) Inner seta middle segment endopod fourth leg (P.) absent (Fig. 14) . . . ScoUo/ana (fusiform nonprehensile) 



6 (3) Maxilla generally as in Figure 15 or 16; baseoendopod I^ with only 2 setae 



3-segs. 



segs 



6 (.'i) Characters not combined as above 



.12 



7 (6") Body fusiform, cephalothorax attenuated in front (Fig. 17) 



7 (6) Bodv vermiform, cephalothorax rectangular in front (Fig. 18); last somite with spines projecting 



dorsally Arenosetella (vermiform) 



11 



