EXPLANATION OF PLATE XXII 



Clidaatea plani/rons, Cope, one-half natural size. 



Fig. 1. Superior view of parts of cranium preserved, including parts of the parietal (a), postfroutal (i), 

 prefrontal (f/), and fronto-nasal (c) elements. 



2. The same, seen from below. 



3. Posterior part of k'ft mandibular ramus, without angle. 



4. Median portion of rif;ht mandibular ramus, showing liingo. In both figures, a is the coronoid, h 



the surangular, c angular, d articular, and e splenial. 



5. Portion of the right quadrate bone: 5, proximal part, inner view; 5 o, proximal view of tho 



same ; t) h, external view of the same. 



6. Distal portion of left quadrate, external view ; 6 a, internal view ; G ft, posterior view. 



7. Eight palatine bone, from below ; 7 a, right palatine bone, from outer side. 



