THE NAUTILUS. XXXI 



PLATE VII 



1.2 PSORONAIAS KUXENSIS FKJEK^ON. 



3. EPIPHRAGMOPHORA CALLISTODERMA PILS.& FERK. 



4. UNIO lETKALASMUS SAY. 

 5.6. ZACHRYSIA RAMSDENI PILS. 



7. Z. EMARGINATA HFK. 



