AMS - American Malacological Society, Inc.
The American Malacological Society is: "A dynamic international society of individuals and organizations with an active interest in the study and conservation of mollusks. Professional malacologists, students, and people devoted to observing, photographing, and learning about mollusks belong to AMS (formerly the American Malacological Union). The history of the organization dates back to its founding in 1931."

DEUTSCHE MALAKOZOOLOGISCHE GESELLSCHAFT (Adressenliste)

DEUTSCHE MALAKOZOOLOGISCHE GESELLSCHAFT
"Die Deutsche Malakozoologische Gesellschaft (DMG) ist die wissenschaftliche Fachgesellschaft zur Förderung der Malakozoologie (Weichtierkunde) im deutschsprachigen Raum. Sie steht Fachwissenschaftlern und Amateuren aller Nationalitäten offen."

ITALIAN MALACOLOGICAL SOCIETY - S.I.M.
"The Italian Malacological Society is a nonprofit corporation whose mission is to promote the increase and diffusion of malacological knowledge."

The Malacological Society of London
"The Malacological Society of London is a charitable organisation (UK registered charity No. 275980) dedicated to the advancement of education and research on molluscs. It is an international organisation based in London, England."

MALACOLOGICAL SOCIETY of AUSTRALASIA
"The prime objective of The Malacological Society of Australasia (MSA) is to promote the study of molluscs. Our members include amateurs, students and scientists interested in the study, conservation or appreciation of molluscs."