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The article presents a study that used mitochondrial DNA sequence variations to characterize the snail populations of the Bulinus truncatus/tropicus complex sampled in Lake Albert in western Uganda. Included in the study were 39 snail samples collected from five populations, Booma, Bugoigo, Piida, Toonya, and Walukuba. Based on analysis of patterns of sequence variations and evolutionary relationships within localities using a 612 basis point (bp) fragment of the mitochondrial cytochrome oxidase subunit gene, the authors discovered five unique haplotypes defined by 21 polymorphic sites.