Maximum likelihood phylogeny based on a partitioned dataset containing 1,971 aligned characters of the mitochondrial cytochrome b (cytb), NADH dehydrogenase subunit 4 (ND4), and flanking tRNA genes of pareid snakes. Trees were rooted with Achalinus rufescens (not shown). Numbers at nodes are bootstrap values based on 1,000 pseudoreplicates. Sample information is provided in Table 1.