4g 



i29th Species. Toothed False Herring. Hyodon amfihi^ 

 '^don. Do. 



Jmphiodon alosoides. Raf 70 N. G. Animals. G. 15. 



Diameter one fourth of total length, body silvery, back 

 with bluish gilt shades, head gilt above: lateral line slightly 

 curved downwards, tail acutely and equally forked, bluish 

 brown, base reddish. Dorsal fin with 10 rays: anal fin with 34, 

 ends acute, not falcated. 



Length from 14 to 18 inches. Jaws with large conical acute 

 teeth, similar to those of the tongue. Scales large deciduous. 

 Eyes behind the mouth, round and black. Iris silvery gilt. 

 Dorsa! and anal fins with blue shades. It is very good to eat. 

 I have observed it in the lower parts of the Ohio, where it is 

 not so common as the two following species, and is of en called 

 Shad, owing to its larger size. Pectoral fins with 16 rays, and 

 not reaching the abdominal fins. Tail with 24 rays. 



30th Species. Summer False Herring. Hyodon heteru" 

 riis. Hyodon heterure. 



Diameter one fifth of total length; body entirely silvery oliva- 

 ceous, brown above the head: lateral line straight raised up» 

 wards at the base; tail acutely and unequally forked, the lower 

 part longer. Dorsal fin with 12 rays, the anal with 34, not fal- 

 cated, both ends obtuse. 



Length from ten to twelve inches, body very narrow and com- 

 i:)ressed. Jaws with very small teeth, the lower jaw much lon- 

 ger. Eyes over the corners of the mouth, round and black, iris 

 s^ilt. Fins slightly olivaceous, the dorsal and anal have the two 

 first rays simple and the first very short, which produce the 

 obtuse appearance of those fins. Caudal with 24 rays, pectoral 

 fins with 14 rays and reaching the abdominal fins. A common 

 species in the Ohio and tributary streams; it appears later than 

 the following, wdience it is called Summer-herring. It forms 

 a connecting link betw^een this and the following subgenus, hav_ 

 ing the teeth as in the following species. - 



2d Subgenus. Glossodon. 



Body lanceolate, jaws equal with small teeth, dorsal fin oppo- 

 site to the vent, nearly medial, beginning behind the abdomi- 

 nal fins. The name means toothed tongue. 



