.../ Summary: In wrasses, jaw movements during biting are influenced by a feature on the premaxilla; labrichthyines show biting patterns distinct from those of other wrasses. Cleaning Feeding kinematics Protruded biting Convergent evolution Jaw protrusion Wrasses The ecological...

..., the paths travelled by a sphere, with a radio-opaque centre, inserted into the buccal cavity were determined ( Fig. 4 ). The most posterior-starting path from the nine observations (path 1 in Fig. 4 B) showed a considerable anterior movement until shortly after the instant of peak jaw protrusion. Next...

..., divergence between males and females in both the timing of key movements and the magnitude of excursions reached by the hyoid, jaws and neurocranium during prey capture. Some of the largest differences are in jaw protrusion, with males exhibiting faster time to peak jaw protrusion but females exhibiting...

.... The mechanism of upper jaw protrusion in the guitarfish differs from that described in other elasmobranchs. Muscle function and motor pattern during feeding are similar in the plesiomorphic cranial muscles in the guitarfish and the spiny dogfish probably because of their shared ancestral morphology. Modulation...

...-feeding lower vertebrates. Numerous individual effects were found, indicating that individual sharks are capable of varying head movements and motor activity among successful feeding events. Upper jaw protrusion in the spiny dogfish is not restricted by its orbitostylic jaw suspension; rather, the upper...

... their biting behavior. We propose a model for the feeding mechanism in carcharhinid sharks, including upper jaw protrusion. This study represents the first electromyographic and kinematic analysis of the feeding mechanism and behavior of an elasmobranch. * e-mail: [email protected] 07 08...