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Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate STYLOSPHRIDA et Druppulida Diam Fig Stylosphra melpomene sp Fig Lithatractus jugatus sp vel Stylosphra jugata Fig Lithatractus fragilis sp vel Stylosphra fragilis Fig Stylosphra lithatractus sp The entire shell Fig Stylosphra lithatractus sp The greater part of the cortical