The peristome of Funaria has

4 teeth in one ring

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32 teeth in 2 rings

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15 teeth in one rings

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16 teeth in 2 rings

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Solution

The correct option is B 32 teeth in 2 rings
The peristome lies immediately below the operculum. It consists of two overlapping rings of periostomial teeth, which is long, conical teeth, one within the other. There are sixteen teeth in each set. The teeth of both the sets are on the same radii and thus opposite to each other.

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