324 



VERTEBRATES : FISHES. 



with the ventrals under or forward of the pectorals, as 

 Cod, Haddock, and their allies ; 



Fig. 181. 



Cod. 



Apodal Malacopterygians, or Soft-finned Fishes with- 

 out ventrals, as Eels ; 



Fig. 182. Fig. 183. 



Eel. 



Sea-Horse. 



Fig. 184. 



Pipe-Fish. 



Lophobranchiates, or Fishes with the gills in tufts, as 

 Pipe-Fishes and Sea-Horses ; and 



Plectognathes, or Fishes which have the maxillary bones 

 united to the intermaxillary, as the Puffers, Sun-Fishes, 

 File-Fishes, and Trunk-Fishes. 



Fig. 185. 



Fig. 1 86. 



Puffer. 



Trunk- Fish. 



Cartilaginous Fishes have their skeleton essentially 

 cartilaginous, calcareous matter being present only in 



