The Cavibelonia are one of the four orders of solenogaster, a kind of shell-less, worm-like mollusk.
This order is not monophyletic and is no longer accepted.
Previous families Acanthomeniidae Amphimeniidae Drepanomeniidae Epimeniidae Notomeniidae Proneomeniidae Pruvotinidae Rhipidoherpiidae Rhopalomeniidae Simrothiellidae Strophomeniidae Syngenoherpiidae
References
Salvini-Plawen L v. (1978). Antarktische und subantarktische Solenogastres (eine Monographie: 1898–1974). Zoologica (Stuttgart) 128: 1-305