CLASSIFICATION OF VERTEBRATA 10 



Gadidae. Gadus, Lota, Molva. 

 Ophidiidae. Fierasfer, Ammodytes. 

 Pleuronectidae. Pleuronectes, Ehombus, Solea. 



c. PLECTOGNATHI, Cuvier. Physoclystic ; maxillae and 

 premaxillae fused with each other and with the cranium. 

 Gills pectinate, but with a very small opercular opening. 



Ostracion, Tetrodon, Diodon, Orthagoriscus. 



d. LOPHOBRANCHII, Cuvier. Physoclystic; gills in the 

 shape of peculiar bunches under a large operculum with 

 narrow opening. 



Syngnathus, Nerophis, Phyllopteryx, Hippocampus. 



