a feature uncommon among Brazilian freshwater snails. Their cave-specific adaptations include reduced pigmentation, fragile shells, and small size. The Gruna do Pedro Cassiano cave, where the ...

Like other freshwater snails facing extinction, the Dunner und Blitzen pebblesnail has a small habitat with a highly restricted range. It faces threats from the popular Page Springs Campground, which ...

The two species of freshwater snail were once widespread throughout the Columbia Basin in ... helping to keep streams clean and providing food for our beloved salmon.” Ashy pebblesnails are small, tan ...

These freshwater giants have greenish-grey coloring ... help the fish to locate bottom-dwelling prey, such as snails, mussels, clams, crayfish, insect larvae, and fish eggs. Also known as the ...