FISHES OF THE ALTAMAHA BASIN. 37 



above, the muzzle moderately rounded. Eye rather large, uearly as 

 long as the muzzle, 3 to 3J in head. 



Mouth large, quite oblique, the maxillary reaching to orbit, the man- 

 dible included. 



Scales medium, 6-40-3, rather closely rubricated, about 21 in front 

 of the dorsal. Dorsal nearer caudal than muzzle, distinctly behind the 

 ventrals. Dorsal IJ^ 8. Anal 1, 8. Pectorals not reaching nearly to ven- 

 trals, the latter not to vent. 



Color, in spirits: Clear olive; a dark, burnished, plumbeous lateral 

 band, which extends through the eye and up the caudal fin : whole 

 body bright crimson : fins yellow. 



Colors, in life: Clear olive above, with very intense green dorsal 

 and vertebral lines; an intense metallic blackish band along sides; 

 below this the sides bright silvery, in the males bright, clear red, the 

 color of red berries ; the whole body more or less flushed with red, the 

 belly especially bright : iris crimson. 



Fins all bright golden-yellow : silvery space below eye strongly 

 marked : tip of lower jaw black. 



Teeth 2, 4-4. 2, with masticatory surface developed. 



Length 2J to 3 inches. 



This species is extremely abundant in the headwaters of the Oconee, 

 in clear rapid streams. It is one of the most brilliant of the genus. 



Hydrophlox lut^innis is deeper-bodied than H. rubricroceus. It has 

 also a smaller mouth and different coloration, especially of the fins. From 

 A. chloroceplialus, it differs in the larger mouth, larger size, and smaller 

 scales : the pectoral aud ventral fins are also usually shorter. Tbe 

 teeth, also, are 2, 4, instead of 1, 4. 



Genus CODOMA Girard. 

 11. CODOMA XL^NURA Jordan. 



Minnilus (Photogenis) xcenurus JORDAN (1877), Proc. Ac. Nat. Sc. Phila. 79. 



This beautiful fish is the most abundant species in the rapids of the 

 Ocmulgee at Flat Shoals. 



12. CODOMA CALLISEMA Jordan. 



Episema callisema JORDAN (1877), Ann. Lye. Nat. Hist. 3(53. 



This species, one of the most elegant of the genus, is very abundant 

 in the South Fork of the Ocmulgee. It differs from the other species of 



