Fig. 2. (A) Lateral view of the head of a juvenile Clarias gariepinus. Indicated are the muscles and bony elements used in this study. Note that the m. A₂A₃' has been partially cut to expose the underlying m. levator arcus palatini and the m. A₃''. (B) Ventral view on the hyoid musculature of the same juvenile Clarias gariepinus. Note that the bottom of the fish has been dissected to expose the lower jaw, hyoid, cleithrum and m. sternohyoideus. Scale bar, 5 mm.