INDEX. 
The first numbers indicate the page, the second the 
plate, and the third the figure. 
ACHATINA, 93. 
acicula, 93, viii, 8. 
Acme, 97. 
lineata, 97, viii, 11. 
Ancyuus, 41. 
fluviatilis, 41, iv, 9. 
lacustris, 41, iv, 10. 
Anoponta, 21. 
anatina, 21, n, 2. 
cygnea, 21, 11, 1. 
AQUATIC, 18. 
Arion, 42. 
ater, 43. 
flavus, 43. 
hortensis, 44. 
Bat, 87. 
perversa, 87, viii, 5. 
BIVALVES, 138. 
Buutmus, 75. 
acutus, 75, vii, 7. 
