Mangelia powisiana

Submitted by Graham D Saunders on
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G D Saunders
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This species has been said to be our largest Mangelia. The figured shell is from lower intertidal zone but from Britany as I know of no authentic fresh material from UK or Channel Islands waters. Populations of a smaller species exist in UK and Irish waters but they appear to have no valid name unless it is Mangelia minor Jeffreys