These snails are known only from the eastern United States.
It is known from the United States, including California.
It is known from the northern United States and southern Canada.
Only two species are known from the United States, one of which is obviously introduced.
Since the 1950s, it is also known from the United States.
It is known from the United States and Mexico.
First described scientifically in 1998, it is known only from the eastern United States.
He didn't seem to know any other name for people from the United States.
It was described by Casey in 1913, and is known from the southwestern United States.
It was described by Ragonot in 1887, and is known from the western United States.
