Phylogenetic trees reconstructed based on the sequences derived from two genera and six species of monstrilloids including an outgroup taxon, Lepeophtheirus salmonis (Siphonostomatoida). The numbers above or below branches indicate both bootstrapping values (BP, in percentage) and Bayesian Posterior Probabilities (BPP, in probability) and are presented in order of BP/BPP A Tree based on the sequences of mtCOI B Tree based on the sequences of 28S rRNA. Each species name followed by the GenBank accession number(s).