At the time of writing, 20 land, 22 freshwater and 437 marine and brackish water mollusc species belonging to 210 genera, 105 families and 23 orders under 4 classes had been recorded in Bangladesh.

Contents: Introduction. Land Molluscs: 1. Kingdom Animalia. 2. Phylum Mollusca. 3. The Univalves: Class gastropoda: 1. Order Mesogastropoda. 2. Order Stylommatophora. 3. Order Soleolifera. Freshwater Molluscs: i. The univalves: Class Gastropoda: 1. Order Archeogastropoda. 2. Order Mesogastropoda. 3. Order Basommatophora. ii. The Bivalves: Class Bivalvia. 1. Order Unionoida. 2. Order Veneroida. Marine and Brackish water molluscs: The Univalves: i. Class Polyplacophora: 1. Neoloricata. ii. Class Gastropoda: 1. Order Archaeogastropoda. 2. Order Mesogastropoda. 3. Order Neogastropoda. 4. Order Cephalaspidea. 5. Order Aplysiomorpha. 6. Order Archieopulmonata. 7. Order Basommatophora. 8. Order Systellommatophora. The Bivalves: Class Bivalvia (Pelecypoda/Lamellibranchia/Acephala). 1. Order Nuculoida. 2. Order Arcoida. 3. Order Mytiloida. 4. Order Pterioida. 5. Order Ostreina. 6. Order Veneroida. 7. Order Myoida. The Cephalopods: Class Cephalopoda: 1. Order Nautilida. 2. Order Sepiida. 3. Order Teuthida. 4. Order Octopoda. Glossary of terms. References. Index of scientific names. Index of English and local names.