Leptoxis

Leptoxis is a genus of freshwater snails with a gill and an operculum, aquatic gastropod molluscs in the family Pleuroceridae.

Species within this genus inhabit rocky fast-flowing parts of unpolluted and unimpounded mid-sized rivers in the American mid South and the southern Midwest. Species in the subgenus Mudalia inhabit rivers and creeks in the Atlantic drainage.

Species
Species within the genus Leptoxis include: Those that are extinct are marked with a dagger †.
 * Leptoxis ampla (Anthony, 1855) (round rocksnail)
 * Leptoxis arkansensis (Hinkley, 1915)
 * Leptoxis carinata (Bruguière, 1792) (crested mudalia)
 * Leptoxis clipeata (Smith, 1922) (Agate rocksnail)
 * Leptoxis coosaensis (I. Lea, 1861) (Painted rocksnail)
 * Leptoxis compacta (J. G. Anthony, 1854) (Oblong rocksnail)
 * Leptoxis dilatata (Conrad, 1835)
 * Leptoxis foremanii (I. Lea, 1843) (Interrupted rocksnail)
 * Leptoxis formosa (I. Lea, 1860) (Maiden rocksnail)
 * Leptoxis ligata (Anthony, 1860) (Rotund rocksnail)
 * Leptoxis lirata (Smith, 1922) (Lyrate rocksnail)
 * Leptoxis mimica (Goodrich, 1922)
 * Leptoxis minor (Hinkley, 1912) (Knob mudalia)
 * Leptoxis nickliniana (I. Lea, 1841)
 * Leptoxis occultata (Smith, 1922) (Bigmouth rocksnail)
 * Leptoxis picta (Conrad, 1834) (Spotted rocksnail)
 * Leptoxis plicata (Hinkley, 1915) (Plicate rocksnail)
 * Leptoxis praerosa (Say, 1821) (Mainstream river snail)
 * Leptoxis showalterii (I. Lea, 1860) (Coosa rocksnail)
 * Leptoxis subglobosa (Say, 1825)
 * Leptoxis torrefacta (Goodrich, 1922) (Squat rocksnail)
 * Leptoxis trilineata (Say, 1829)
 * Leptoxis umbilicata (Wetherby, 1876)
 * Leptoxis virgata (I. Lea, 1841) (Smooth rocksnail)
 * Leptoxis vittata (I. Lea, 1860) (Striped rocksnail)


 * Synonyms:
 * Leptoxis anthonyix is a synonym for Athearnia anthonyi (Anthony's river snail)
 * Leptoxis crassa is a synonym for Athearnia crassa (boulder snail)
 * Leptoxis pisum is a synonym for Athearnia crassa
 * Leptoxis rapaeformis is a synonym of Leptoxis dilatata
 * Leptoxis melanoides is a synonym of Elimia melanoides (Black mudalia)