The following is a list of other websites that provide further information on molluscs:
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Amateur Entomologists' Society
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Sea Slug Forum – Provides links to many other sites about Nudibranchs
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Orkney Field Club – For all those wishing to learn more about environmental organisations.
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The 'World Directory of Conchologists and Malacologists' (also: SHELLERS directory) which is maintained at the Spirula website of the Dutch Malacological Society.