OCR Text |
Show 1894.] HYOIP ARCH OF CERATOPUS. 637 In each of these cases the ventral process mentioned above is segmented off as a separate cartilage. This may possibly be a symplectic from its position, as suggested by Huxley (5), but, in Fig. 3. Ct hm. Ceratodus forsteri.-The hyomandibular and adjacent parts. Letters as before. view of the great variability exhibited by the hyomandibular, it is doubtful whether any importance can be attached to its independence. In the last two cases (fig. 3, e and /) the aperture for the |