BULLETIN OF THE UNITED STATES FISH COMMISSION. 71 



In some cases we may find along the exposed edge of every scale, on 

 each side of the body below the lateral Hue, beginning as far forward as 

 the bases of the ventrals, a row of small, hard tubercles. These become 

 larger and more numerous over the anal fin and on the caudal peduncle, 

 and make these regions decidedly rough to the feel. They even con- 

 tinue down on to the anal rays. Some of the males thus tuberculated 

 show the faintest outlines of the caudal spot. 



44. Ericymba buccata Cope. — Silver-mouthed Dace. 



This is one of the most common species of the Cyprinidcc in the Chick - 

 asawha Eiver, but I have met with it at no point in the South nearer 

 the Mississippi Eiver. I have specimens taken at Enterprise, in the 

 autumn, that are much more highly ornamented than any that I have 

 seen elsewhere. The edges of all the scales on the upper half of the 

 body, except a triangular patch from the back of the head to the dorsal 

 fin, are broadly edged with blue. Top of the head to the lower edge of 

 the orbit blue. Snout blue. An ill-defined band of blue along the 

 sides, most intense behind. Many blue specks scattered over the body 

 below the lateral line and behind the ventrals. Dorsal and caudal red. 



45. Opsopceodus eniiliee Hay. — Emily's Minnow. 



A very common minnow throughout the region visited. Collected at 

 Memphis, Vicksburg, Jackson, and Grenada. 



46. Minnilus dilectus (Grd.) C. & J. — Delectable Minnow. 



Collected at Memphis, Vicksburg, Edwards, Jackson, Grenada. 



47. Minnilus rubripinnis Hay. — Mississ^n Red-fin. 



^'o specimens of this species were obtained on my last trip. From 

 new material obtained from the Chickasawha, in the autumn, and which 

 had lain in alcohol but a short time, I add the following particulars as 

 to the coloration : The scales above are olive, with dusky edges. There 

 is a broad blue band along the sides, which becomes narrower, better 

 defined, and of an indigo hue on the caudal peduncle. Whole top and 

 upper half of the sides of the head, together with the tip of the lower 

 jaw, blue. A blue streak on each side of the anal fin. A narrow dusky 

 line running along the back from the occiput to the caudal fin. Dorsal 

 fin red, with a blue stripe running along the tips of the rays. Caudal 

 mostly red. Other fins and the lower part of the body white. 



48. Minnilus lirus Jor. — Steel-sided Minnotv. 



Xototropis lirus Jordan, Aunals N. Y. Lye. Nat. Hist., xi, 1877, 34'..'. 



At Memphis I caught a single specimen of a Minnilus which I can- 

 not distinguish from typical specimens of M. lirus from the Etowah 

 Eiver, in Georgia. 



49. Notemigonus chrysoleucus (Mitch.) Jor. — Shina: 



Found in abundance in the little lakes and ponds along the Mississippi 



