298 CLASSIFICATION OF FISHESj ETC. 



very large^ nearly every internal part covered with 

 innumerable small teeth ; with a series of others^ lo^ig 

 and pointed^ on the sides of the lower jaw; scales 

 small, distinct. 



Esox lucius Linn. Bloch, pi. 32. 

 Galaxias Cuv. Scales obsolete ; mouth small ; tongue 

 with strong hooked teeth ; dorsal and anal fins op- 

 posite. 



Esox truttaclus Cuv. 



AlepocepJialus Risso. * Body with large scales, but 

 none on the head; mouth small, with fine and 

 crowded teeth ; eyes very large ; gills with eight 

 rays. 



A. rostratus Risso. Turin Trans, xxv. pi. 10. fig. 24. 



Leptodes Sw. Head large, obtuse, truncate ; body 

 linear, very slender. 



Stomias Cuv. Body elongated, narrow, compressed, 

 anguilliform ; head large, round ; mouth enormous, 

 cleft almost to the gills, and armed with very long, 

 remote, curved teeth ; eyes exceedingly large ; lower 

 jaw longest; dorsal falcate; ventral fins very long 

 and filiform ; dorsal and anal placed close to the 

 caudal which is rounded. * 

 Stomias Rissoii. Riss. Ichthy. pi. 10. fig. 34. p. 331. 



Leptodes Sw. General structure of Stomia, but the 

 teeth are more developed, and are so long that they 

 project over the jaws when the mouth is closed ; 

 dorsal fin placed close to the head, and with the 

 first ray prolong ed into a filament t ; caudal forked. 

 L. Sloanii. Sch. pi. 85. L. Siculus. Sw. App. 



DiPLOPTERUs Gray-X Body herring-shaped ; head 

 rather lengthened; jaws considerably retractile; 



* Microstoma Cuv., described by Risso with <w'o dorsal fins, and placed 

 by Cuvier just before Stomias, seems to me more like an Atherina : ALepo- 

 cephaliis, also, is so slightly defined that I almost hesitate to introduce it. i 



t The genus Salanx Cuv. seems allied to Leptodes; but as only one 

 species is known, not yet described, and nothing is said of its form, fins, &c., 

 it is here omitted. 



X The situation of this type is very uncertain ; by its two anal fins it has 

 an obvious relation to Corica. 



