GENERAL CLASSIFICATION OF FISH. 41 



E S. 



Vertebrate Animals. 



Series II. 

 CARTILAGINOUS FISHES. 



Orde 



ler V. Order VI 



LOPHOBRANCHII. PLECTOGNATHI. 

 Only one Family. Families. BRANCHIIS LIBERfs. 'BRANCHIIs'FixiS? 



^yngnathida-the 1. Oymnodontes- Families. Families. 



wath naked teeth. L Acipenseridce-ihe ^acAt-Sharks and Bays. 



-uthednshe 



f . l' a f ie S lar 'FW' 8 ( rhi h considered therefore s its type), the technical name 



of which ^ ElL > i8the t 



