INTRODUCTION. 57 



Chetodonoideg. 



Scombroides. 



Muges. 



Branchies labyrinthiquea. 



Lophioides. 



Gobioides. 



Labroides. 



MALACOPTERYGIEN3. 



Abdominaux. 



Cyprinoides. 



Siluroides. 



Salmonoides. 



Cluseoides. 



Lucioides. 

 Subbrachiens. 



Gadoides. 



Pleuronectes. 



Discoboles. 

 Apodes. 



Murenoides. 

 A mdchoire superieure fixee. 



Selerodermes. 



Gymnodontes. 

 A branchies en forme de houppes. 



I .opobranches. 



CARTILAGINEUX ou CHONDEROTERVGIENS, 



Sturiones. 



r'iagiostomes. 



Cyclostomes. 



Pursuing farther the system of the Baron, wa 

 shall commence our descriptive part with the 

 characters of his first great family, the percoid 



