Rusty Crayfish

http://www.seagrant.umn.edu/ais/rustycrayfish_invader

http://dnr.wi.gov/org/caer/ce/eek/critter/invert/Rustycrayfish.htm

http://www.kdwp.state.ks.us/news/fishing/aquatic_nuisance_species/aquatic_nuisance_species_list/rusty_crayfish

http://www.wisconline.com/feature/crayfish_image.html

http://animaldiversity.ummz.umich.edu/site/resources/keith_pecor/rusticus.jpg/view.html

http://animaldiversity.ummz.umich.edu/site/accounts/pictures/Orconectes_rusticus.html

http://www.indiana.edu/~inbsarc/projects_files/projects_crustacean_files/projects_nonindigenous.html
http://www.fs.fed.us/r9/forests/superior/NNIS.php