| 1. | The columella is multiplicate, with 4 to 13 plications plus parietal lirae.
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| 2. | It has smooth interstices, without the conspicuous plications of the new species.
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| 3. | On the inside of the outer lip, various ridges or plications called umbilicus.
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| 4. | Diaphragm eventration is typically repaired thoracoscopically, by a technique called plication of the diaphragm.
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| 5. | The plication on the columella extends fully to the columellar callus, and is quite conspicuous.
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| 6. | There is also an ocherous streak in the plication to the plical stigma at one-third.
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| 7. | Upon the beak there are small irregular threads crossed obliquely by the plications of the old beaks.
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| 8. | This species is remarkable for the subgranose plications on the whorls, and the brown carina of the body-whorl.
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| 9. | The specimens are on the scale of millimetres; they bear unusual flanges ( " plications " ) on their sides.
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| 10. | The shell contains more than six columella is angled in the centre, spreading broadly and with a small anterior plication.
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