FIGURE 29. The adductor chamber in Sphenodon in left lateral view showing the m. Adductor Mandibulae Posterior and the m. Pseudotemporalis Profundus (the postorbital bar, lower temporal bar, upper temporal bar, m. Adductor Mandibulae Externus and m. Pseudotemporalis Profundus have all been removed). Redrawn from Wu (2003).