Inventory of Molluscs Home Fish Sea cucumbers Molluscs Crustaceans Sponges Soft corals Marine molluscs live in various habitats ranging from shallow areas including intertidal rocky shores and mudflats to depth of 9,000 metres. They provide tremendous socioeconomic benefits, serving as food sources, ornaments and home decorative items. In addition, their shells are used as raw materials for the production of lime and cements. Some species of marine molluscs act as scavengers in cleaning the environment and also as pollution indicators. Marine molluscs are also considered as a potential drug cabinet; their secondary metabolites contain compounds that have anti-microbial, anti-inflammatory, anti-cancer, anti-oxidant and anti-tumour properties. The MOI is currently undertaking an assessment of marine macro-molluscs using both taxonomy and DNA-based technique.