Plate P9. 1. Bradleya sp. (juvenile). 2. Bradleya normani Brady. 3, 4. Echinocythereis echinata (Sars). 5. Rockallia enigmatica Whatley, Frame, and Whittaker. 6, 7, 8. Henryhowella dasyderma (Brady). White scale bars = 200 µm.
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