1. US Geological Survey, Wetland and Aquatic Research Center, 7920 NW 71st Street, Gainesville, FL 32653.
2. Department of Natural Sciences, Santa Fe College, Gainesville, FL 32606.
3. Nature Coast Biological Station, University of Florida, Cedar Key, FL 32625.
4. US Geological Survey, 3321 College Avenue, Davie, FL 33314.