Likelihood Ratio (LRTs) and McDonald-Kreitman tests' results on the sequence datasets of the mtDNA genes COX1, COX2, Cytb, ND1, ND4L, ATP8 and the nuclear gene Cyc of pulmonates.

*p**paFisher' s test p-value, npc: number of pairwise comparisons that the neutrality index (N.I.) was bindicated (probability >0.99) both by the Bayes empirical Bayes and the Naïve empirical Bayes methods in all model comparisons,cindicated only by the Naïve empirical Bayes method in all model comparisons.The tree length (TL) is given as a measure of sequence divergence (nucleotide substitutions per codon along the tree).