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21
Family Littorinidae No. 61,62
The Periwinkles.
In Western Europe, Littorina littorea, the Common Periwinkle, is used for food in immense quantities.
Family Cerithiidae. No. 64,65:
A species here exhibited, ([underlined] Telescopium telescopium [underlined], No. 65) a native of India, is extensively used for burning into lime. 
Family Ampullariidae. No. 75.
The Idol Shells.
These magnificent snails, some of which attain a diameter of 4 inches are all natives of the [crossed out] wa [crossed out] fresh-