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Diversity of the skull and feeding mechanism in the Labridae, illustrated with skulls cleared and double-stained for bone (red) and cartilage (blue). Green lines indicate the four-bar linkage of the jaws, blue the lower jaw-closing lever and yellow the sliding upper jaw. (a) Anampses neoguinaicus, (b) Cheilio inermis, (c) Cheilinus trilobatus, (d) Siphonognathus argyrophanes, (e) Gomphosus varius ( f) Epibulus insidiator, (g) Xyrichtys pavo. Scale bars, 5 mm.
