| 1. | All these teeth have prominent basal plates with interrow support ridges.
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| 2. | The alar plate and the basal plate are separated by the sulcus limitans.
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| 3. | So the other rule, not quite so catchy, is " basal plate down ."
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| 4. | Picture is very clear, showing operculars, shell plates, and whorls of imbricating basal plates.
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| 5. | The median tooth of the radula has a long basal plate and a short body.
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| 6. | The other chthamaloid family, Catophragmidae, differs from Chthamalidae in possessing whorls of imbricating basal plates.
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| 7. | In the Chrysopsinae, the antennal flagellum has a basal plate and the flagellum has four annuli.
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| 8. | A " basal plate " on the lower surface that bears a comb-like structure is also present.
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| 9. | The second dorsal fin is fitted over a very small, anterior basal plate apparently lacking a spine.
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| 10. | The basal plate, which is primarily associated with motor ( i . e ., muscle ) control.
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