M. granulifera.
M. tabanula.
M. episcopalis. The episcopal Mitre. Pl. [31], fig. 7.
Species turreted, with spiral whorls very wide and entire; the aperture effuse anteriorly.
M. papalis. The papal Mitre.
Species with coronated whorls.
M. pontificalis. The pontifical Mitre.
Species covered with a yellowish epidermis, beneath which are interrupted fillets of orange coloured spots; spire crowned with tubercles.
M. micozonias. The small white-banded Mitre.
Species sub-ovate, spire very short, generally tubercled.