348 



TELEOSTEI 



in one family only of living Teleostei, the Elopidae (Fig. 376). 

 In others the right and left branchiostegal membranes either are 



soc 



parietal ; pof, postfrontal ; prf, prefrontal ; pro, prootic ; 

 (squamosal) ; v, vomer. 



confluent in the mid-ventral line below the isthmus, or, in the more 

 modified forms, they may run forwards without meeting. The 

 branchial slits are continued ventrally far forwards between the 



