EXPLANATION OF PLATE I. 



ICHTHYODECTES MARATHONENSIS, Efll. fit. 



Skxill seen slightly obliquely from below. 



m. Eight maxilla. 

 de. „ and left dentaries. 

 ar. „ ,, articulars. 



efh. Sff. ? Ethmoid or frontal (?) 



~ — - Hvomandibular or preoperculum. 



pr. 



hi/. Hyoid bones. 



op. Operculum. 



r. Ribs. 



r. Vertebrae. 



f. Displaced fin rays. 



