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Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate Astrolophida Astrolonchida et Amphilonchida Diam Fig Amphilonche lanceolata sp Fig Amphilonche hydrotomica sp The spindleshaped central capsule is filled up with small granules The clear calymma forms conical sheaths for the spines with myophriscs Fig Amphilonche diodon sp Fig