Becker, George C. / Fishes of Wisconsin
Paddlefish family - polyodontidae, pp. 231-237 ff. PDF (2.7 MB)
http://rightsstatements.org/vocab/InC/1.0/| Copyright 1983. The entirety of this book is available for viewing by the public as an Open Access text through the cooperative efforts of George Becker, the University of Wisconsin Press, and the UWDCC. This Work is copyrighted to the Board of Regents of the University of Wisconsin System. Any use of this material falling outside the purview of "Fair Use" requires the permission of the University of Wisconsin Press.