Till 
CONTENTS. 
PAGR 
II. DESCRIPTION of the species 
. 53 
FAMILY PALUDINIDiE (MARSH SNAILS) 
• 
. 53 
„ NERITIDiE .... 
. 60 
n LITTORINIDAE 
. 62 
CHAPTER IY. 
Air-breathing Snails .... 
. 65 
FAMILY LIMACIDJE (SLUGS) . 
. 66 
ONCIDIADJE .... 
. 89 
„ HELICIDiE (LAND SNAILS) 
. 92 
„ AHRICULID^ .... 
. 177 
„ LIMNAEIDAE (WALTER SNAILS) . 
. 181 
OPERCULATED LAND SNAILS 
. 
. 220 
