FISHES OF THE ALTAMAHA BASIN. 37 



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

 loug as the muzzle, 3^ to 3i| iu head. 



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

 dible included. 



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

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

 veutrals. Dorsal 1, 8. Anal I, 8. Pectorals not reaching nearly to vea- 

 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 jellow. 



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

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

 below this the sides bright silvery, iu 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 2^ to 3 iuches. 



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 lutipinnis is deeper-bodied than H. riibncroeeus. It has 

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

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

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

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



Genus CODOMA Girard. 



11. CoDOMA x^NURA Jordan. 

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



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

 Ocmulgee at Flat Shoals. 



12. CoDOMA CALLISEMA Jordan. 



Ej)isema ealUsema Jt)UDAN (1877), Ann. Lye. Nat. Hist. 3G3. 



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

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



