Assassin snails (Anentome helena), with their distinctive alternating yellow and black banded shell, are commonly found in ...

The two species of freshwater snail were once widespread throughout the Columbia Basin in Montana, Idaho, Oregon and Washington. But the snails have disappeared from Montana and are now living in ...

“Endangered Species Act protection would help conserve these snails’ homes and safeguard other wildlife that depend on the same springs.” Freshwater snails are some of the most imperiled species in ...