Ss 2 
Pleuroxus hamatus. Post-abdomen and antenna. 
ef affinis. 
Alona costata. 
Leydigia quadrangularis. 
Euryecercus lamellatus. 
Male. 
. Posterior margin. 
Antenna of female. 
Alonella pygmea. 
Eurytemora affinis Poppe. 
Female. 
Female abdomen, 
Male. 
Male abdomen. 
Fifth feet of male. 
Vifth feet of female. 
Jaw. 
Antennule. 
Nauplius larva of this or a related species. 
