Fig. 1

Bayesian inference analysis tree based on all available ITS2 rDNA sequences for the Diplozoidae, with Neoheterobothrium hirame Ogawa, 1999 used as the outgroup. Support for BI, ML, and P is indicated at nodes (BI/ML/P), with geographical origin shown in relation to colour coded map and country key. Nodes with less than 50% support for all methods are not annotated, with those that have less than 50% support in certain analyses are indicated with “-”. Nodes not present in either ML or P topologies are indicated with “*”. Branches with thicker formats indicate specific taxonomic groups indicating major clades, species complexes, and current or proposed genera