Additions to these collections have come via collecting efforts with primary focus on other groups and the deposit of voucher material. Recently, frozen specimens and other material especially preserved for DNA and fine-anatomical research were added to our auxiliary collections. Numerous field programs have resulted in one of the most diverse holdings of alcohol-preserved land snails, a resource that has been important in several recent family and higher level taxonomic revisions. Specimens in our collection stem in part from field collecting programs by Field Museum staff and associates and in part from previously formed private and institutional collections. Dates in parentheses reflect the year or period in which the material was received.
Annotations summarize geographical and taxonomic coverage and historical highlights.
Many lots of type material. Fritz Haas, et. Material dates primarily from 1925 to 1950. Synoptic collection of North American, European and South American mollusks. 5,200 lots, ca.