| 1. | The peristome is approximately cylindrical and up to 5 mm wide.
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| 2. | The peristome may be orange, through red, to purple.
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| 3. | The peristome is acute, and slightly or not thickened within.
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| 4. | The peristome and lid range in colour from orange to red.
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| 5. | The peristome is broken, probably with very shallow sinus above.
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| 6. | The aperture is ovate and entire with the peristome incomplete behind.
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| 7. | The peristome is often red and may turn purple with age.
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| 8. | The peristome teeth are absent so it s known as gymnostomous.
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| 9. | It has a curved anterior apex that is over the peristome.
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| 10. | The peristome is cylindrical and up to 5 7 mm wide.
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