Figure 3

Phylogenetic trees consistent with alternative phylogeographies for the Pomatiopsidae. A. Phylogeny consistent with the Tibet hypothesis. Taxa are generally considered to be more derived (i.e., to show progressively more apomorphic character states) as one moves away from Dali in Yunnan, following suggestions in the literature [10]. Taxa are grouped into clades according to hypothesized tracts of dispersal and isolating geographical barriers. B. Phylogeny consistent with the Hunan hypothesis (following Table 1).