Student Project Figures Figure 11 Diagram showing different cell layers and cell types of a typical hydrozoan polyp (Page 276 in Brusca, Moore and Shuster, 2016). The parts that are highlighted were observed in the microscopy slides used for this study (cross-sections of the tentacles, gonophores and pneumatophore fixed in parafin wax). Figure 9 Figure 10 Figure 11 Figure 12 Figure 13