290 FISHES. 



about 5 in length; eye longer than snout, 3 in head; 

 coloration of the others; D. I, 8; A. I, 11; lat. 1. 42; L. 

 3^. Ohio R. (New Albany, Dr. Sloan) to Arkansas R. 

 and S. (Type of Alburnellus.) 



3. M. rubellus, (Ag.) Jordan. ROSY MINNOW. Light 

 olive, with brilliant clear green lustre; a dark vertebral 

 line, and dark edges to the dorsal scales; sides brilliantly 

 silvery, the lustre overlying a plumbeous lateral shade; 

 forehead, etc., rosy in spring ; sides sometimes rosy 

 tinted; golden dorsal and lateral stripes, conspicuous in 

 life as in most silvery species; head short, -somewhat 

 pointed, 5 in length; depth 5^ to 5^; eye 4 in head; 

 D. I, 8; A. 1, 10; lat. 1. 38; L. 4 to 5. Great Lakes and 

 Ohio Valley; abundant in the larger streams; even more 

 graceful in form and delicate in coloration than the pre- 

 ceding. 



4. M. dinemus, Raf. EMEEALD MINNOW. Coloration 

 exactly as in M. rubellus, but the body very slender and 

 less compressed, more elongated than in any other of 

 our Cyprinidw, the depth being only from one-sixth to 

 one-seventh of the length; head 4f in length; eye 3^ in 

 head ; fins as in preceding; L. 4 to 5. L. Michigan and 

 Ohio Valley, in the larger streams, like the others, " going 

 in flocks." (A. jaculus and A. arge, Cope.) (This is 

 Rafinesque's " Emerald Minnow," the type of his genus 

 Minnilus. Rafinesque's generic name having nearly 

 forty years priority over Alburnellus^ must be substituted 

 for the latter appellation.) 



5. M. micropteryx, (Cope) Jordan. SMALL -FINNED 

 MINNOW. Resembles M. rubrifrons^ but the fins all very 

 low, the ventrals scarcely reaching to the line of the 

 middle of dorsal; head 4 in length; depth 5|- to 5f ; 

 lat. L. 39; L. 3. Clinch R. 



