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Figure 1


Fig. 1. Images of the four species of lamprey used in this study. (A) Lampetra fluviatilis (river lamprey). (B) Petromyzon marinus (sea lamprey). (C) Mordacia mordax [the parasitic homologue of the non-parasitic Mordacia praecox, from Collin et al. (Collin et al., 2004)]. (D) Geotria australis (pouched lamprey) [from Collin et al. (Collin et al., 2003b)]. Scale bars, 20 mm. Note that the eyes are well developed in all species.