A magnified view of the Samoana mt COI clade (Figure 1). It shows the topological placement and distribution of Burch 1970 museum specimens together with those of extant wild samples. These include S. diaphana (Moorea and Tahiti, photograph of extant Tahitian snail by B. Holland); S. burchi, (Tahiti only, photograph of extant snail by T. Coote) and S. attenuata [Moorea and Tahiti, photographs of extant wild snails by C. Hickman (Moorea) and T. Coote (Tahiti)]. A mt genotype obtained from a surviving Raiatean population  is also included. Note that S. attenuata is known to persist in additional Tahitian valleys . Support levels are given above branches; Bayesian posterior probabilities (> 70) on the left and maximum parsimony bootstrap support values (> 50) on the right.
Lee et al. BMC Evolutionary Biology 2009 9:204 doi:10.1186/1471-2148-9-204