Morphometric measurement of shell size variation of Aegista diversifamilia sp. n. (shown in this figure) in top view, apertural view and umbilical view. AA: angle of apex; AH: aperture height; AW: aperture width; BH: body whorl height; FW: first whorl width; SBH: secondary body whorl height; SH: shell height; SW: shell width; UW: umbilicus width; 2W–6W: 2nd–6th whorl width.