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