1. C.D. Pogue U.S. Fish and Wildlife Service, 1655 Heindon Road, Arcata, California 95521
2. M.J. Monfils, D.L. Cuthrell Michigan Natural Features Inventory, Michigan State University Extension, P.O. Box 13036, Lansing, Michigan 48901
3. R.A. Hackett, R.A. Zionce, A.K. Monfils Department of Biology and Institute for Great Lakes Research, Central Michigan University, 1455 Calumet Court, Biosciences 2100, Mount Pleasant, Michigan 48859