PIRATE III. 



Fig. 1. Restoration of CV/iAis/rs rv/<'.v Marsh, one-twelfth natural 

 size. 



Fig. 2. .Skull of C/i(ias/fs 7'c/ox from above, two-ninths natural 

 size. 



Fig. 3. Skull of C/i'/dsfcs rv^.v from below, two-ninths natural 

 size. 



ICxiM.ANAinjx. — pri/iy premaxillar\ ; m. maxillary; J\ frontal; 

 //•/, prefrontal; ///-, postfrontal; po, postorbital; /. parietal; (j, 

 quailrate; t/j, quadrato-jugal; oc. occipital condyle; r, vomer; pal, 

 palatine;//, pterygoid; <•//, ectopterygoid process of pterygoid;/', 

 jugal; dsp, basisphenoid. 



All the figures are reduced copies of life-sized drawings, made by 

 Miss Mary Wellman and the author, from specimens in the University 

 of Kansas Museum. 



