[2] The round rocksnail is currently known from a shoal series in the Cahaba River, Bibb and Shelby counties, Alabama, and from the lower reach of the Little Cahaba River, and the lower reaches of Shade and Six-mile creeks in Bibb County, Alabama.

[5] Dams change such areas by eliminating or reducing currents, and thus allowing sediments to accumulate on inundated channel habitats.

For example, many reservoirs in the Basin currently experience eutrophic (enrichment of a water body with nutrients) conditions, and chronically low dissolved oxygen levels.

[11][12] Such physical and chemical changes can affect feeding, respiration, and reproduction of these riffle and shoal snail species.

[5] Rocksnails are gill breathing snails found attached to cobble, gravel, or other hard substrates in the strong currents of riffles and shoals.