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Keywords from Image Description:
Natural history of the animal kingdom for the use of young people Plate XXII . MolluscaMolluscoldea Bivalve Shells Protozoa Animalculae xxn 'Wl' Microscopic objects highly ma niliedj Epistytis Jlavicans rl VarticcUa marina Stylonichia mytilui Noctiluca niiliaris Eucyrtidium cranoides Acauthaslaurus purpiirasccns Diphcoims fasces