tlie CaeJacanth Fish. 



329 



Tlie produced postero-lateral corners of the ])ariet;il plate 

 are Jiot in any S[)ecimens I liave seen separated by distinct 

 sutureSj hut as they are not present in three young individuals 

 of my series, they are no doubt in origin separate bones, 



Fie:. 5. 



E.Pt. 



PrArt 



Mueropoma viantelli. 



Keconstr action of the right side of the anterior 

 end of the fish, x 1. 



Reference-letters as before, with: — Ang., angular; Clay., clavicle; 

 Ci.Ei , cleithruin ; Cor., coronoid ; Den., dentary ; E.Pt., epi- 

 pterygoid = n)etacoriicoid ; Gu., gnlar; Pr.Art., prearticuhir ; 

 S.Cl, supracleithruni ; Sp., splenial. The small tooth-beaririLr 

 bones above the prearticular and dentary are described in the 

 text. 



called by Stensio suprateniporo-extrascapula. For the present 

 I shall call them suprateniporals. 



The supratemporal has ])rojecting from its lower surface a 

 ridge which is produced caudally into a descending point and 



