31. CYPRINHLE CL10LA. 173 



Fins low. Lateral line somewhat decurved. Color dark above, below 

 this a silvery baud, and below this a dusky shade ; fins in the typical 

 specimens plain. Head 4; depth 3|. D. 8; A. 85 Lat. 1. 53. L. 3 inches. 

 Valley of Mexico. 



( Codoma vittata Girard, Proc. Acad. Nat. Sci. Phila. 1858, 195, and U. S. Mex. Bound. 

 Surv. Ichth. 53.) 



226. C. ornata (Grd.) J. & G. 



Body stout and compressed, the head very blunt, thick, and rounded. 

 Month small, nearly horizontal, the jaws equal. Eye large, anterior, 3f 

 in head. Scales deep, closely imbricated, the lateral line decurved. 

 Dorsal a little behind ventrals. Fins all rather small. Snout prickly 

 in the spring males. Color dark ; sides with about 8 more or less 

 conspicuous cross-bars ; fins all with the middle part dusky or black, 

 the tips milk-white, the pectorals and the anal notably so. Head 4J; 

 depth 3-1. D. 8 ; A. 7 ; Lat. 1. 39 ; teeth 4-4. L. 2-J inches. Chihuahua. 



(Codoma ornata Girard, Proc. Acad. Nat. Sci. Phila. 1856, 195, and U. S. Mex. Bound. 

 Surv. Ichth. 53.) 



aa. Dorsal fin inserted directly over ventrals ; head moderate, subconic. 



22?. C. caSBisema Jordan. 



\ 



Body rather elongate, fusiform, compressed. Head elongate, the 

 muzzle rather blunt, projecting over the moderate-sized, oblique mouth ; 

 maxillary not reaching to opposite the eye. Eye moderate, 4^ in head. 

 Scales firm, closely imbricated, 15 in front of the dorsal. Dorsal fin 

 extremely high ; its height in the males one-fourth of the length of the 







body, in the females somewhat lower ; its insertion almost directly over 

 the first ray of the ventrals. In all the other similarly colored species of 

 Cliola the dorsal is evidently behind the veutrals. Coloration brilliant, 

 clear dark bine above, sides and below abruptly silvery; a blue lateral 

 streak, much as in C. coerulea, bounding the blue of the upper parts, the 

 white pigment of the lower parts looking as if painted over the blue. 

 Dorsal with a large black spot on its last rays above. Dorsal, anal, and 

 caudal with the usual satin- white pigment at their tips ; these fins other- 

 wise of a clear, bright ferruginous orange. Females slender and dull- 

 colored. Head 4 ; depth 4f. D. 8 ; A. 8 ; scales 6-39-3 ; teeth 4-4. L. 

 2^ inches. Ocmulgee Eiver, Georgia. An elegant fish, allied to the 

 species of Erocjala. 



(Episema caUisema Jordan, Ann. Lye. Nat. Hist. N. Y. 1876, 363 : Codoma callisema 

 Jordan, Bull. U. S. Nat. Mus. xii, 52.) 



tt Edges of teeth more or less serrate or crenate; dorsal fin slightly behind ventrals. 

 (Moniana Girard.*) 



* Girard, Proc. Acad. Nat. Sci. Phila. 1856, 199 : type Leutiscus lutrcnsis B. & G. (A 

 coined name.) 



