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Keywords from Image Description:
Megalophaedusa martensi . Megalophaedusa martensi Martens Pulmonata Stylommatophora Clausiliidae Phaedusinae The largest species of the family Clausiliidae Door Snails in the world The individual in the photo has shell of mm long and weighs with the animal Loc Hamamatsu Shizuoka Prefecture Japan ja my own file PD