Geol. Mag. 1909. 



Plate II. 



2 [ 



p. 



J 3 



G.il. Woodward del. 



Puzosia curvatisulcata, sp. nov. Tui-ouiaii— zone of ILAnster planm 



Waterworks Quarry, Marlow, Bucks. I'igs. 1-3, f? nat. size. 



Fig. 4, suture-line, drawn nat. size. 



