Figure 8
From: The cerato-mandibular ligament: a key functional trait for grazing in damselfishes (Pomacentridae)
Electromyographic pattern during sound and biting events in Stegastes rectifraenum . Timing of muscle activity relative to the time of the bite (T B , dashed line). The data of all behaviors (sound and feeding) are pooled together. The period between the muscle activation onset and offset (mean ± SD) is filled in black and represent the muscle activity duration. SH: sternohyoideus muscle, EP: epaxial muscle and AM2: one of the main divisions of the adductor mandibulae muscle.