and its T'ributaries. 475. 
A ity of P city ; from the latter the } drawings was di. 
pecies cannot. be the A. bicolor of Lesueur, 
for he describes that species as having the “dorsal 
fins low, separated, the second united with the caudal, 
which is rounded ; back and sides reddish? &c. I 
E 
have in my possession the figure of this species, . 
drawn, engraved, and colored by that author; and 
the characters are so. distinctly different from the 
specimens before me, that I believe I am warranted 
in describing the latter as a new species. 
Fig. a. Full size. 
Fig. b. View of the Mouth. 
m promelas: Raf. à The Black-headed Flat-head. 
Pimephales promelas. NS Ichthyologia Ohiensis. p. 53. 
and. Rep. on Zool. of Ohio. p. 194. 
Plate XXVIL Fig. 2. 
Head globose. . Snout sloping, broad, truncate, 
with soft warts in front. Mouth small, elliptical, 
transversal, with equal circular hard lips. Eyes 
round. rides dusky. 
Body full; gibbous on the back, anterior to the 
dorsal fin ; somewhat compressed on the sides. Lat- 
eral line flexuous at its base. Scales rather large. 
Ki. P. _ Dorsal. fin with the anterior ray sub-spinous, stiff, 
1 , elevated, half the length of the soft rays, and the 
osterior soft ray equal to the longest. 
v 
