Maximum parsimony network of Triops cancriformis based on combined COI and ATPase sequence data. Each circle represents a different haplotype, with its diameter proportional to the haplotype sample size. Each line between haplotypes represents a mutation. Populations containing each haplotype and their reproductive mode (if known) are indicated. Reproductive mode symbols as in Figure 3. Haplotypes of T. c. mauritanicus could not be joined to the T. c. cancriformis/simplex network or between themselves without exceeding the limits of parsimony, and form three disjointed networks.