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Figure 9


Fig. 9. Symmetrically metamorphosed variants develop normal lateralized behavior. Despite having either no eye migration (right and left sides, A,A') or both eyes migrating (C,C'), both of these fish (each 60 d.p.f.) settle with their right sides on the bottom. Bone (Alizarin Red) and cartilage (Alcian Blue) stains of two variants, aged 63 d.p.f. (B,B') and 52 d.p.f. (D,D'). (E,F) Pro-metamorphic symmetrical variants (20 d.p.f.) with abnormal bilaterally symmetric frontal bone condensation. Frontal bone (orange arrowheads); overhanging dorsal fin ray (white arrow); resorbed right (open red arrows) and left (open green arrows) supraorbital bars; elongated right and left lateral ethmoid bones (white arrows in black arrowheads). Bars, 0.2 mm





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