372 



TELEOSTEI 



the pseudobranch is absent ; the mesocoracoid arch and the closed 

 ovarian sac are preserved. 



is;.... 







'' 





3 ^i^-gs-sj 

 3 8 -tfsl 





From all other fish this sub-order is distinguished by the pos- 

 session of a most remarkable apparatus, connecting the ear with 



