Herpetological investigations in Illinois Tucker, J. K. 1996. Herpetological investigations in Illinois. Reprinted by U.S. Geological Survey, Environmental Management Technical Center, Onalaska, Wisconsin, December 1996. LTRMP 96-R011. 20 pp. (NTIS #97-151906) ABSTRACT This publication contains reprints of articles on the American toad, the Illinois chorus frog, and range maps that originally appeared in the Transactions of the Illinois State Academy of Science 87(3/4):195-200, Journal of Herpetology 29(2):314-316, and Herpetological Review 26(2):88-90. KEYWORDS American toad, Bufo americanus, chorus frog, distribution, growth, habitat, Illinois, post-transformational, Pseudacris streckeri illinoensis, range maps