INDEX. 

 PART II. 



VNIVALVIA INVOLUTA. 



GENUS 5. BULLA. DIPPER* 



> * MARINE. SEA. 



Plate. Kg. 



Bulla lignaria, wood - - - 27 



PART III. 



UNIVALVIA TURBINATA. 

 TROCHUS TOP SHELL. 



* MARINE. SEA. 



conulus, conule - - ... - 8 2. 3, 



Trochus tuberculatus, knobbed - - 8 1, 



COCHLEAE, OR SNAILS. 



GENUS 8. NERITA, NERIT. 



* FLUVIATILES. RIVER. 

 Nerita Fluviatilis. River - - 16 2. 



MARINE SEA. 

 Nerita Littoralis. Strand - - - 20 2. 2, 



Nerita Pallidulus, pale .. - - - 16 1. 



GENUS 9. HELIX. 



* TERRESTRES. LAND. 

 HELIX. 



Cochlea fasclata, girdled - - - J 3 



