What does a conchologist collect?

A conchologist collects and studies seashells, especially the shells of molluscs. More precisely, conchology is the study of mollusc shells, while malacology covers molluscs as complete living organisms.

The field includes shells from marine, freshwater and land species. Conchologists commonly examine gastropods such as snails, bivalves such as clams, chitons and tusk shells. Shell features—including shape, sculpture, color, hinge structure and microscopic details—can help identify species and understand their relationships.

"Seashells" is the expected quiz answer, although the scientific scope is slightly broader than shells found on beaches. Some conchologists work with museum collections or preserved specimens rather than personally collecting shells. A shell collector may value specimens mainly for beauty, whereas a conchologist studies them scientifically; the two roles can overlap.

Conchology has a long history in natural history. Hugh Cuming became famous for collecting molluscs, and Thomas Say published American Conchology in six volumes between 1830 and 1834. Some molluscs, including nudibranchs, have lost shells entirely, while cephalopods usually have only small internal shells.