164 



PISCES. 



Echiodon (Thompson). Jaws furnished with 

 large cylindrical teeth in front ; small teeth on the 

 palate and vomer ; body smooth, compressed ; 

 gill-orifices large ; dorsal and anal nearly as long 

 as the body, united behind, vent close to the head. 



E. Dmmmondii. Fig. 246 ; J n, s. 



248 



Opliidium (Linn.). As Echiodon, but the jaws 

 armed with small teeth ; the anal fin only half the 

 whole length, and the vent near the middle of the 

 body. 



0. imberbe. Fig. 247 ; 

 barbatum. 



