[3] It lives in an unnamed shoal upstream of the Cahaba River and Shades Creek confluence in Shelby County, Alabama.

[3] Historically, Leptoxis compacta was most abundant in the central section of the Cahaba River at Lily Shoals in Bibb County, Alabama.

[3] The historical range of Leptoxis compacta extended from Centerville, Bibb County, upriver and into lower Buck Creek in the Valley and Ridge physiogeographic province of the southern Appalachian Mountains.

[3] Artificial propagation and reintroduction of Leptoxis compacta into its native range may be a viable recovery strategy to prevent extinction from a single perturbation event.

[2] Most specimens collected from the wild in 2011 had purple pigmentation on the columella indentation, but juveniles propagated in captivity did not have this feature.

[3] Pigmentation patterns and the presence of an ocular peduncle are features that distinguish Leptoxis compacta from sympatric Elimia spp.

[3] Juvenile Leptoxis compacta shells possess one distinct carina on the main body whorl, which is eventually lost as adults.

[3] The radular structure of Leptoxis compacta is described as including a rachidian tooth with a widely convex basal margin and a blunt central cusp flanked by four to five denticles, with the outermost being weakly developed in most cases.