292 PISHES. 



XX Mouth larger, oblique; the jaws about equal. 

 h. Lateral line 35. 



11. H. frefensis. Cope. Body compressed and elong- 

 ate, as in the genus N'otropis ; lateral line decurved; 

 seventeen rows of scales in front of the dorsal; a broad 

 plumbeous shade on sides. Mich, to 111. 

 lb. Lateral line 44. 

 13. H. hoBtnaturus, Cope. Red -Tailed Minnow. 

 Lateral line nearly straight; colors dull; sides not sil- 

 very; a dusky spot at base of caudal; caudal fin dull, 

 brick-red; anal short, I, 7. Tributaries of Lake Michigan. 

 ** Teeth 1, 4 — 4, 1 ; dorsal flu inserted just behind ventrals; fim 

 and lower parts with milk-white pigment in spring, never 

 red ; dorsal with a large black spot on the last rays, about 

 haU-way up (an important feature). (Photogenis, Cope.) 



13. H. ga/acturus, {Cope) Jot. Milkt-Tailbd Shinbb. 

 Bluish above, sides bright silvery, with bright reflections; 

 base of caudal fin largely yellowish, or cream-color; 

 teeth rarely serrate; head 4^ in length; depth 4f ; mouth 

 large, nearly horizontal; body slender, more elongated 

 and less compressed than in the next; scales smooth and 

 firm, usually with dusky edges; D. I, 8; A. I, 8; lat. \. 

 40; L. 5. Cumberland River and S., abundant. Re- 

 sembles the next, but larger, and with a larger mouth. 



14. H.analostanus, (Girard) Jor. Silvee Fin. Leaden 

 silvery; fins satin white in the breeding season; dorsal 

 wiA a conspicuous black spot, as in the preceding; head 

 4 in length, rather short and deep ; mouth rather small, 

 very oblique, yet the lower jaw received within the upper 

 in the closed mouth; body much compressed; depth Sf 

 in length; D. I, 8; A. 1,8; lat. 1. 35 to 40; L. 3^. Teeth 

 usually more or less serrate. Cayuga L., N. Y. {8. H. 

 Gage), to N. J., Va., and Ind., abundant. In full breed- 

 ing dress one of the most exquisite of all our fishes. 

 Jj. keniuc&iensis, Kirt., not of Raf. 



