Periostracum unobtrusive, Some similar colour to M. neritoides.
1: adapical angle almost right angle. 2: shell often has spiral ridges.
3: pale columellar lip, no periostracal flap extending beyond outer lip. 4: tentacles, translucent whitish with pair of dorso-lateral blackish lines wide apart at base, converging adapically. 5: eye in large whitish irregular area continuous with whitish tentacle.