In the Long Island Shell Club newsletter is a picture of a snail smaller than
a penny that has invaded a river in Yellowstone National Park. It is so
numerous that it now out numbers al other Am. crustaceans. I think there is a
typo because the picture caption says snails and then crustaceans. Well,
anyway Am. not only imports food, goods, has immigrants, etc. but unwanted
mollusks!
Jordan *