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Fig. 1. M. horridus: points digitized and used to calculate kinematic variables. 1, eye; 2, tip of the upper jaw; 3, jaw vertex; 4, tip of lower jaw; 5, throat below jaw vertex; 6, tongue tip; 7, prey. Note the relatively long neck, especially when compared to the other species (see Figs 3A, 4A, 5A).