40 



. 29lh Species. Toothed False Herring* Jiyodon amfite* 

 txlov.. Do. 

 J/a/i/iiodon 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 34v 

 ends acute, not falcated^ 



Length from 1 4to- UHn*lie». j aws with-largc- conical < acute 

 ttMtth,. similar to i those of ths tongue* Scales large deciduous. 

 jfiij«»vbehmd the mouth, round and black. Iris silvery gilt. 

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

 Jliave observed it in the lower parts of the Ohio, where it is 

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

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

 not reaching the- abdominal fins. Tail with 24 rays. 



30th Species. Summer False Hrrr-ng, Hyodon heteru* 

 rw». Hyodon heterure. 

 Dfemete* or* fifth of: total length;, body entirely silvery -olUa- 

 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 faU 

 catcd, both ends obtuse. 



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

 pressed. Jaw* with very small teeth, the lower jaw much lon- 

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

 gilt. 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 ntfd reaching the abdominal fins. A common 

 species in the Ohio- an* tributary streams; it appears later than 

 the following; whenee it is cajlcd Summer-herring. It forms 

 a connecting link betweou-thjs and the following subgenus, hav, 

 ing the teeth as in the following species. 



2d Subgenus. Glossd&oW 

 Body lanceolate, jaws equal with small teetli; dorsal fin oppo- 

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

 nal fifts. The name means toothed tongue. 



