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What did you observe?

Identify candidates using visible features.

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AI-generated illustrations to help identify visible features.

Question 1

Which of these shapes does the mollusc most closely resemble?

Look at the entire animal. Check whether it has an external shell, plates on its back, arms or a soft body without a visible shell. Choose the closest overall shape. You do not need to know its name or taxonomic group.

Which of these shapes does the mollusc most closely resemble?
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Real photographs of the species, taken by our contributors.

Compatible candidates

9 species

An unknown feature does not rule out a species. Matches are not confidence percentages.