I found this snail shell in the flood bank of a pond near the DesPlaines River in River Forest, IL near Thatcher and Washington. Can you suggest what species it might be? Or point me to a web site where I might be able to find it's classification? Thank you, Lucas Sturnfield [log in to unmask] or c/o [log in to unmask] <<snail1.jpg>> http://www.freeyellow.com/members5/heavenlylight/snail1.jpg <<snail1b.jpg>> http://www.freeyellow.com/members5/heavenlylight/snail1b.jpg I have created a web page for it at: http://www.freeyellow.com/members5/heavenlylight/snail.html or http://members.tripod.com/HeavenlyLight/snail.html I have looked at snails from the following sites: http://www.science.wayne.edu/animals/mollusc/snail/fresh/index.html http://www.state.nd.us//ndgs/Ndn9.html http://www.flmnh.ufl.edu/natsci/malacology/fl-snail/snails2.htm And I think it is one of the following species: Snails Found in Cook County Class Gastropoda - Freshwater Snails Subclass Prosobranchia Order Mesogastropoda Family Vivparidae Campeloma crassulum Rafinesque, 1819 - Ponderous Campeloma Note: No picture found Campeloma decisum (Say, 1816) - Pointed Campeloma http://www.science.wayne.edu/museum/mollusc/snail/fresh/m17.gif Lioplax sulculosa (Menke, 1827) - Furowed Lioplax http://www.flmnh.ufl.edu/natsci/nimages/malacol/flsnails/fig019.gif Note: Picture is a related species Viviparus georgianus (Lea, 1834) - Banded Mysteryshell http://www.flmnh.ufl.edu/natsci/nimages/malacol/flsnails/fig027.gif http://www.flmnh.ufl.edu/natsci/nimages/malacol/flsnails/fig028.gif Populations are highly variable, although each population tends to be uniform in its characteristics. Viviparus intertextus (Say, 1829) - Rotund Mysteryshell http://www.flmnh.ufl.edu/natsci/nimages/malacol/flsnails/fig029.gif Cipangopaludina chinensis (Reeve, 1863) - Chinese Mysteryshell I http://www.flmnh.ufl.edu/natsci/nimages/malacol/flsnails/fig013.gif _______________________________________________________________ Get Free Email and Do More On The Web. Visit http://www.msn.com
