REPRINT OF ORIGINAL TEXT 111 



15 rays and reaching the abdominal fins. Caudal 

 with 24 rays. 



[II. 299 i.e., 301] 54th Species. Buffalo Carp 

 Sucker. Cotostomus anisopturus. Catostome anisop- 

 ture. 



Diameter one fourth of the total length : silvery : 

 head sloping, lateral line curved as the back: tail 

 unequally bifid, upper part much longer : dorsal fin 

 longitudinal, beginning above the pectorals and 

 reaching the end of the anal, sinuated by a double 

 falcation, first ray very long. 



[55] A singular species which I have never seen. 

 I describe it from a drawing of Mr. Audubon. It is 

 found in the lower part of the Ohio, and is called 

 Buffalo Carp, Buffalo perch, Buffalo Sucker, White 

 Buffalo-fish, &c. Length about one foot. Very good 

 to eat. Taken with the seine in the spring only. 

 Body broad, dorsal fin broad and large, remarkable 

 by its shape like a double sickle, and first ray which 

 reaches the tail. Anal fin small and falcate. Pecto- 

 ral fins reaching the abdominal fins. The number 

 of abdominal rays was not observed, if it should have 

 nine it would be nearer to C. Velifer and C. setosus, 

 or it may form a peculiar subgenus. 



The C. tuberculatus of Lesueur belongs also to this 

 subgenus, having eight abdominal rays ; but its tail 

 is regularly bifid. 



2d Subgenus. Ictiorus. 



Body nearly cylindrical. Dorsal fin elongated, 

 abdominal fins with nine rays, tail bilobed, com- 

 monly equal. 



The C. gibbosus and C. Communis, of Lesueur, 

 appear to be intermediate between this subgenus and 



