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Thalassiosira anguste-lineata syn Coscinodiscus anguste lineatu, Coscinodiscus polychordus, Thalassiosira polychorda, Coscinosira polychorda

In girdle view the many connecting threads are spread out away from the valve center and can be straight or at an angle. The diameter is 14-78µ. This sample came from the Ross Sea, Antarctica.