APODA. 



165 



LeptocepTialus (Pennant). Morris. Head minute; 

 body very thin, translucent ; pectorals minute ; 

 dorsal and anal as in Ophidium. 



L. Morrisii. Fig. 248; \ n.s. 



Muraena (Linn.). No pectorals ; dorsal and anal 

 very low, united behind ; gill-opening minute ; a 

 single row of sharp teeth in each jaw. 



M. Helena. Fig. 249 ; ^ n. s. 



249 



Anguilla (Cuv.). Eel. Body cylindrical, long, 

 mucous, with minute imbedded scales ; dorsal and 

 anal united behind ; teeth in both jaws, and on 

 the vomer. 





A. acutirostris. Fig. 250 ; 

 latirostris. 

 conger. 



