Phylogenetic tree based on concatenated mitochondrial COI, 16S, and 12S sequences. Numbers by branches show bootstrap values (Maximum Likelihood analysis) and posterior probabilities (Bayesian analysis). Only significant numbers (>80% and >0.9) 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).