REVIEW OF LOCAL FISHES 43 



I. Scales small, 47-60 cross series. 



1. Teeth in two rows, not saw-edged, the secondary row with 



three teeth. Golden Ide 



2. Teeth of the second row not more than two. 



A. A black spot at the front of the base of the back fin. 



Upper jaw with a small barbel in the adult. Grows 

 to a length of ten inches. Horned Dace 



B. No black spot on back fin. No barbel. Reach a 



length of five inches. 



a. Lateral line complete, reaching the base of the 



tail fin. Rosy Dace 



b. Lateral line more or less incomplete, usually ceas- 



ing behind the middle of the body. 



Goldthread Shiner 



II. Scales larger, 30-46 cross series. 



1. Peritoneum (i. e. lining of body cavity) black, a single 



row of four teeth. 



A. About 38 rows of scales, sides silvery. 



Silvery Minnow. 



B. About 45 rows of scales, color olivaceous, little silvery. 



Blunt-nosed Minnow. 



2. Peritoneum (i. e. lining of body cavity) pale. 



A. Scales about 45. Two teeth in the second row and 



sometimes five in the first. A small barbel on 

 the upper jaw in adult. Reaches a length of eighteen 

 inches. FaUfish 



B. Scales less than 45, four teeth, never five, in the main 



row. Smaller. 



a. A small barbel on the upper jaw. Scales about 41, 



one tooth at most in the second row. 



Horny-head 



b. No barbel on the upper jaw. 



a2. Not more than one tooth in second row. 



a3. Scales about 39, not notably deeper than long, 

 sides with a silvery or dusky lengthwise 

 band. Spawn-Eater 



b3. Scales larger, 30 to 37. 



