Figure 9

The buccohypophyseal canal in an adult specimen of Latimeria chalumnae. Three-dimensional reconstructions based on computed tomography scans of the specimen MNHN-CCC 22. (a) Lateral sagittal view showing the notochord (yellow), the cranial cavity (purple) containing a very small and posteriorly placed brain (red arrowhead), the basisphenoid (green) and the parasphenoid (red). (b) Same structures in closer view; the red arrowhead indicates the brain; the much elongated pituitary gland extends from the brain towards the skull base in a groove formed by the basisphenoid (blue arrow). BaS, basisphenoid; BC, cranial cavity; NC, notochord; PaS, parasphenoid.