The collection includes voucher specimens of the Pennsylvania Fish Commission and U.S. Fish and Wildlife Service cooperative trout survey (Cooper, 1970) identifying the species of 100,000 fish, the largest collection of Pennsylvanian fishes known; corresponding maps identify where specimens have been found over time.

The collection includes voucher specimens of the Pennsylvania Fish Commission and U.S. Fish and Wildlife Service cooperative trout survey (Cooper, 1970) identifying the species of 100,000 fish, the largest collection of Pennsylvanian fishes known; corresponding maps identify where specimens have been found over time.

The Penn State University Fish Museum currently houses over one million fishes distributed among 30,000 lots. Major holdings include specimens from Pennsylvania, West Virginia, and Lake Malawi, Africa. One of the largest holdings of fishes from Lake Malawi (some 400 undescribed species), the catalog includes underwater video to delimit species by the unique behavior of the species. The collection includes voucher specimens of the Pennsylvania Fish Commission and U.S. Fish and Wildlife Service cooperative trout survey (Cooper, 1970) identifying the species of 100,000 fish, the largest collection of Pennsylvanian fishes known; corresponding maps identify where specimens have been found over time. Additionally, digitized data about collections, field notes, video recordings of behavior and an explanation of why each of these is important.