Plate I. 



Vol. II. 



W 



I. Cionella Gloynii Gibbons. 2. Succinea gyrata Gibbons. 3. Helix 

 Petterdiana Taylor. 4. Stenogyra lucida Gibbons. 5. Ennea Taylori 

 Gibbons. 6. Amphipeplea Petterdi Nelson. 7. Physa Btisbaitica Nelson 

 and Taylor. 8. Pkysa Beddomei Nelson and Taylor. 9. Physa fusiformis 

 Nelson and Taylor. 



