Fishes of Upper Georgia. 365 



Scales rather larger than in americanus ; lateral line 41 to 45; scales of 

 sides and lateral line not dark-edged ; the punctulations above not gath- 

 ered into little spots. 



D., I, 18. A., I, 16 (I, 15 to I, 18). Teeth 0, 5-5, 0, rather slender, with 

 short hook, and the edge not strongly crenate ; the 5 nearly in one line. 



Color very pale olive above, with silvery lustre. My specimens are all 

 extremely pale, which is, perhaps, a local peculiarity ; lower fins red in 

 spring males. 



The described species of this genus may be compared as 

 follows : — 



* Beginning of dorsal decidedly nearer caudal than muzzle. 

 a. Eye moderate, about 4 iu head. 



b. D., I, 7 or I, 8; A., I, 12 to I, 14; lat. 1. 50; scales 



small, their edges punctate; head short, blunt, 

 rounded above; lateral line strongly decurved; 

 Maine to Minnesota and Alabama. . . americanus. 

 bb. D., I, 10; A., I, 11; snout elongated, flattish; Cali- 

 fornia OCCIDENTALIS. 



aa. Eye very large, about 3 in head (in specimens of 4 inches 

 in length). 



c. Snout short ; mouth little oblique ; head 4£ in length ; 



D., I, 8; A., I, 14; body considerably compressed. 



Texas seco. 



cc. Snout elongated, flattened above; mouth strongly 

 oblique ; head 4$ in length ; D., I, 8 ; A., 1, 16 ; scales 

 large ; lat. 1. 43 ; body elongated, very strongly com- 

 pressed; its thickness not half the length of the 



head. Ocmulgee R. ischantts. 



** Beginning of dorsal not nearer caudal than muzzle. 



d. Body long and slender, the head 4£ in length ; D., I, 8 ; A., 



I, 13 ; scales large ; snout blunt. Texas. . leptosomus. 



dd. Body stouter; head 4 in length; D., I, 8; A., I, 10. 



Arkansas lucidus. 



12. ERIMYZON OBLONGUS (Mitchill) Jordan. 

 This species occurs iu the Ocmulgee in some abundance. 



13. MYXOSTOMA CERVINUM. 



Teretulus cervinus Cope, Journ. Phil. Ac. Sci., 1868, 235. Jordan and 

 Copeland, Bull. Buff. Soc, 1876, 157. 

 Ptychostomus cervinus Cope, Proc. Amer. Phil. Soc, 1870, 478. 

 Moxostoma cervinum Jordan, Man. Vert., 296. 



This very distinct species has been well described by Prof. 

 Cope. My specimens all have 9 ventral rays, instead of 10, 



