p. Z.S. 19 07. PI. XVII. 



G.M.Woodward, del.et litli 



WesbjlSTewinarL imp. 



1&3,P0TAM0N (POTAMONAUTES) PLATYNOTUS, 



2&4,PLATYTHELPHUSA CONCULCATA. 



5&,6 PLATYTHELPHUSA^ MAGULATA. 



