HISTORY. 



11 



abandoned Artedi's order of Branchiostegi, but substituted a 

 scarcely more natural combination by joining it with Artedi's 

 Chondropterygians, under the name of " Amphibia nantes." 



His classification of the genera appears ia the 12th edition 

 of the " Systema," thus — 



Amphibia Nantes. Pisces Thoracici. 



