Subgenus Cyclocerion

Original Description

"Cyclocerion, new subgenus This subgenus differs from Cerion ss. in being exceedingly small, widely openly umbilicated and in having the peristome enormously thickened even on the parietal wall, thus rendering the aperture complete. Type. - Cerion (Cyclocerion) baconi Bartsch." (Bartsch, 1952:1)
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