Maximum-likelihood (ML) trees of nuclear internal transcribed spacer region of ribosomal DNA (ITS-rDNA) sequences from Palythoas spp. Novel sequences from this study with specimen numbers and sampling locations are in boldface (species, specimen number). Sequences (GenBank accession number) from previous studies are in regular font. Values at nodes respectively represent ML and neighbor-joining (NJ) values. KL, Keelung; KT, Kenting; GI, Green Island.