Cytochrome b gene genealogy of Clade B haplotypes. Statistical parsimony network was constructed using all unique Clade B haplotypes. These haplotypes were found in individuals identified as M. gapperi. Inferred ancestral haplotypes are represented by squares. The size of the square and ovals correspond to the haplotype frequencies. A hash mark indicates intermediate mutational steps. The parsimony criterion was met, as the number of mutational steps between any pair of haplotypes was ≤ 5.