Hexastylidium = Shell with six styles; derivation from Hexastylus.
Hexalonchida = Cubosphærida duplicia = Dyosphærida hexacantha.
Hexalonche = Shell with six spears; ἑξαλόγχη.
Hexancistra = Shell with six fish-hooks; ἑξάγκιστρα.
Hexaloncharium = Shell with six spears; derivation from Hexalonche.