figs. 1-32, pls. 1-13.Descriptors: Stylaster bithalamus, (Stylaster (Allopora) bithalamus), Stylaster bocki, (Stylaster (Allopora) bocki), Stylaster carinatus, (Stylaster (Allopora) carinatus), Stylaster crassior, (Stylaster (Eu-Stylaster) crassior), Stylaster dentatus, (Stylaster (Eu-Stylaster) dentatus), Stylaster microstriatus, Stylaster echinatus, Stylaster ramosus