Amphibians & Reptiles

The amphibian and reptile collection contains approximately 15,000 specimens. These collections focus on the upper Midwest and represent one of the best collections of herpetological material for this region. Among the material is an extensive series of leopard frogs collected by David Merrell in the 1960s. This collection is noteworthy due to the large number of specimens in each lot. Merrell's frogs continue to be examined by researchers interested in the history of frog malformations in the upper Midwest.

The amphibian and reptile collection also contains significant collections from Mexico as well as smaller collections from south Pacific islands and southwestern United States. For its size, the collection is remarkably diverse, representing 40 families, 152 genera, and 360 species.

Minnesota Pollution Control Agency Malformed Frog Collection

Tissue Collection:
Tissues of several species of Minnesota amphibians and reptiles are available for research purposes. Tissues are stored at -70°C or in 95% ethanol.

Contact information

Ken Kozak, Curator of Herpetology

Mailing Address:

Amphibian and Reptile Collection

Bell Museum of Natural History
, University of Minnesota

100 Ecology Building

1987 Upper Buford Circle

St. Paul MN 55108

Minnesota Biodiversity Atlas

Over 400,000 scientific records and up to 175,000 high-resolution images make up our extensive online database.

This searchable interface integrates data on birds, mammals, fishes, plants, and fungi to provide public collections access and enhance agencies' capacity to perform a range of activities from biological surveys to conservation planning.