34 coNTRimnioNs to north American ichthyology — iii. 



III. — AVATERBASIN OF THE ALTAMAHA RIVER. 



Twenty-tlirc'O species :iie known ti) o<'eni' in tlie wnter-basin of tiie 

 Altaraaba, exclusive of tlie Sluid {Alosa sapidissima)^ wh'u-.h ascends all 

 the Soutliern rivers until prevented by tlie dams Of tliese tweiitytliree, 

 four are known only from the Oconee and Ocniulgee-, viz, Xothonotus 

 inscriptus, IlydropJilo.v lutiphinis, Cod(>macalHsema,iiu(l Codoma xccnura. 

 The others are chiefly species of general distribution. Five species wen* 

 obtained by the writers in the headwaters of the Oconee River, viz, 

 Nothonotus hiscriptus, Micropicrns salmoides. IlydrophJox lutipinnis, Ceral- 

 iehthys rnbrifrons, and Ceratichthns higuttatii.s. The other species men- 

 tioned below are from the (^cmulgee. 



ETHEOSTOMATID^. 



Genus IIADROPTERUS Agassiz. 

 ]. Hadropterus NiGROFASciATUS Agass'iz. 

 Taken at the Flat Shoals in the South Fork of the Ocmulgee. 



Genus BOLEOSOMA DcKay. 



2. BoLEOsoMA :maculaticeps Cope. 



A specimen, apparently of this species, from the Ocmulgee River at 

 Macon, Ga. 



Genus NmiTONOTUS Afiasmz. 



3. NOTUONOTUS INSCRIPTl S, Kp. nov. 



Body rather stout and deep, pretty strongly compressed behind, less 

 so antcrioily : depth 4 J in length : caudal peduncle rather deep. 



Head large, 4;^ in length, rather obtuse, the jirofde quite gibbons: 

 a considerable angle formed o[)posite the eyes, wiiich arc high up and 

 rather close together. 



Eye about equal to snout, '.\h in head. I\Iouth moderate, slightly ob- 

 Tupie, the maxillary reaching eye, the upper jaw the longer. Cheeks 

 and opercles entirely scaleless, as in N. thalassinus. Region in front of 

 dorsal scaly: breast naked. Belly covered with ordinary scales. Scales 

 rather large, closely imbricated, tlu' lateral line continuous and nearly 

 straight. Scales 5-4(1-5. 



Fins well developed. The spinous dorsal larger than the soft dorsal, 



