The Larson and Hanscomb Shell Collection of Whitman College contains thousands of molluscan shells from around the globe, collected by George and Mary Hanscomb and Douglas and Mary Larson, Whitman alumni and spouses. The shells are individually labelled and cataloged with collection site, date, and family and species name.
Specimens are mostly marine, although there are some terrestrial snail shells.
The collection is open for use by anyone with an appropriate need.