Phylogéographie de Neritina stumpffi Boettger, 1890 et Neritina canalis Sowerby, 1825 (Gastropoda, Cycloneritida, Neritidae)

<p class="rtejustify">The population genetic structure of <em>Neritina stumpffi</em> Boettger, 1890 in the Indo-Pacific and <em>Neritina canalis</em> Sowerby, 1825 in the Pacific Ocean were investigated using a fragment of the mitochondrial COI gene. The haplotype network of <em>N. stumpffi</em> showed a genetic structuration between the two oceans, with shared haplotypes. Concerning <em>N. canalis</em>, western Pacific and central Pacific populations are genetically structured, without shared haplotypes. The Coral Triangle appears to have played a filtering barrier role for <em>N. stumpffi</em>, whose presence in both oceans could be explained by the flow of the south-equatorial current. A barrier to the dispersal of <em>N. canalis</em> between the western and the central Pacific may also exist.</p>