1885.] NATURAL SCIENCES OF PHILADELPHIA. 11 



by which it has been usually known, because, in our judgment, 

 the original Cyprinus corporalis of Mitchill is Semotilus bul- 

 laris, as was formerly stated by Dr. Abbott, while the present 

 species is evidently Mitchill's Cyprinus atromaculatus. 



The following is Mitchill's account of Cyprinus corporalis : — 

 " Cyprinus corporalis. This fish is called by the Dutch, Corpo- 

 ralen, or corporal, and inhabits the Hudson in the neighborhood 

 of Albany, the Wallkill through its whole extent, and the western 

 streams and lakes from Wood Creek to the Oneida Lake, and so 

 on. 



" The length of a middle-sized individual is about thirteen 

 inches, and the girth five ; though he frequently grows larger. 



" The head is smooth, roundish, thick, and without scales. The 

 body is thickly covered with scales ; on the back, more especially 

 between the head and the dorsal fin, the hue is dusky ; on the 

 belly it is uniformly white, and on the sides the forepart of each 

 scale is covered with a blackish film or pigment. 



" Mouth toothless, and of a moderate gape ; tongue distinct, 

 but not free ; gill-covers smooth. 



" The tail is forked ; the lateral line bends downward, and ends 

 in the middle of the tail. 



" The dorsal fin is near the middle of the back, and consists of 

 seven rays ; the caudal fin is composed of nineteen rays or there- 

 about. 



" The anal has seven, the ventral seven, the pectorals have 

 thirteen, the branchiostegous membrane has three rays, the dorsal 

 and caudal fins are tipped with a blackish tinge. 



" Takes the hook, if baited with dough, when let down through 

 holes in the ice, at midwinter, in the Hudson at Albany ; flesh 

 eatable, but rather soft and coarse." 



2. Semotilus thoreauianus. 



Semotilus thoreauianus Jordan, Bulletin U. S. National, Museum, x, 

 63, 1877 (Flint River) ; Jordan, Bulletin U. S. National Museum, 

 1878, xii, 43 (Flint River) ; Jordan & Gilbert, Synopsis Fishes N. A., 

 1882, 221 (Flint River). 



The specimens of this species in the Indiana University 

 Museum were taken by Professors Gilbert and Swain, near 

 Tuscaloosa, Alabama. 



The original types were from the Flint River ; no others have 

 been reported. 



