Maximum Likelihood phylogenetic tree based on concatenated nuclear ITS1, ITS2, and 28S sequences. Numbers by branches show bootstrap values (only numbers >80% are indicated). All sequences of Wallaconchis specimens are new. Information on individually-identified specimens can be found in the lists of material examined and in Table 1. The color used for each species is the same as the color used in the other trees (Figs 1–3, 5) and on the map of species distribution (Fig. 6).