Figure 6. Examples of taxa with deep intraspecific divergence.
(A) Sampling sites of the two COI lineages found in Echinolittorina vidua. The specimens of both lineages were present (scale bar, 400 km). (B) Neighbour-Joining (NJ) tree of COI barcodes of E. vidua with bootstrap values more than 50% indicated. (C) Sampling sites of the two COI lineages found in Serratina capsoides. The specimens of one of the lineages were allopatric (scale bar, 400 km). (D) Neighbour-Joining (NJ) tree of COI barcodes of S. capsoides with bootstrap values more than 50% indicated. The map of northwestern Pacific with Greater China, Japan, and Korea was rendered with ODV v4.7.363 (available at http://odv.awi.de) and modified in Microsoft Office.