102 GENUS CATOSTOMUS. [October 



A new genus of Fishes, of the order Abdominales^ propo- 

 sed, under the name of Catostomus; and the characters 

 of this genus, with those of its species^ indicated. By 

 C. A. Le Sueur. Read September 16, 1817. 



(Concluded.) 



7. C. iongirostrum. Dorsal fn deeper than broad, 

 quadrangular; the extrem'-ty of the anal fin does not reacts 

 the base of the caudal fin\ head horizontal, terminated 

 in a long snout 



Body subcylindric, strait, deli;ate; head flat; eyes 

 large, irides yellowish white; aperture of the mouth greatly 

 arcuated, and large; scales ver}^ small and roundish; colour 

 of the body above reddish, paler on the sides; abdomen 

 white, with a bluish tint; the lateral line is curved above 

 the pectoral fin. Length of individual described five 

 inches. 



P. 16.— -D. 12.— V. 9.— A. 7.— C. 18 rays. 



This iish I discovered in the state of Vermont; I have 

 not seen it in any other state. 



8. C. nigricans. Head large, quadrangular; analfi?t 

 strait, its extremity reaching the base of the caudal fin; 

 eyes oblong: the lateral line runs in a straight course irom 

 the branchial opening, below the range of the eye, to the 

 tail. 



Body subquadrangular near the head; tail strait, short; 

 caudal fin forked, with pointed lobes; dorsal fin quadran- 

 gular, and small; scales roundish; colour of tht back black- 

 ish, sides and abdomen reddish yellow, with dusky blot- 

 ches; pectoral^ abdominal^ and anal fins reddish; caudal fin 



