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Fig. 1. Diagram of the tongue-bite apparatus (TBA) in a generalized teleost head
model, illustrating the five muscles sampled using electromyography in this
study. The cleithrobranchial ligament [CBL; situated within the sternohyoideus
(SH) muscle] and the positions where two sonomicrometric crystals (1, 2) were
sutured to monitor relative CBL distance during feeding in O. mykiss
are shown. Other muscle labelling: AM, adductor mandibularis; EP, epaxialis;
HP, hypaxialis; PH, protactor hyoideus. Bone labelling: bh, basihyal; co,
coracoid; md, mandible; nc, neurocranium; pcl, post-cleithrum; scl,
supracleithrum; v, vertebral column.