the Ccelacanth Fish. 



327 



etlimoid. It is a thin shell of bone consisting of an oral 

 plate. which continues that of the palatine, and is perforated 

 antero-laterally by a small foramen; and a lateral vertical 

 plate which anteriorly passes gradually into the oral part, 

 but posteriorly is sharply marked off by a ridge, the lateral 



Fisr. 4. 



Macropoma manteUi. The palate, x 1. 



Reference-letters as before. The reference-lines of P.V. and Pal. end 

 on the tooth-plates. 



surface being recessed to receive the anterior edge of the 

 palatine. 



The hinder end of the prevonier passes dorsally to tha 

 anterior end of the paraspheuoid. 



