Rhizoridae

Rhizoridae is a family of very small sea snails, barrel-bubble snails, marine opisthobranch gastropod molluscs. These are headshield slugs, in the superfamily Bulloidea.

Genera
Genera within the family Rhizoridae include:
 * Rhizorus Montfort, 1810
 * Volvulella Newton, 1891
 * Genera brought into synonymy:
 * Paravolvulella Harry, 1967 : synonym of Volvulella Newton, 1891
 * Volvula A. Adams, 1850 : synonym of Volvulella Newton, 1891