356 Fishes of Upper Georgia. 



fLeuciscus croceus Storer, "Proc. Bost. Soc. Nat. Hist., July, 1845;" 



Synopsis, 417. Agassiz, Am. Journ. Sci. Arts, 1854, 359. 

 ?Nocomis nebrascensis Girard, Proc. Phil. Ac. Sci., 1856, 213; Pac. R. R. 



Surv., X, 254, 1858. 

 Nocomis bellicus Girard, Proc. Phil. Ac. Sci., 1856, 213. 

 Ceratichthys cyclotis Cope, Proc. Phil. Ac. Sci., 1864, 277; Cyp. Perm., 365. 



Giinther, Cat. Fishes, VII, 178. Cope, Proc. Am. Phil. Soc, 



1874, 136. 

 ? Ceratichthys micropogon Cope, 1. c, 1. c. Giinther, 1. c, 179 (hybrid?). 

 Ceratichthys stigmaticus Cope, 1. c. 278, 1. c. 366. Giinther, 1. c. 



We did not find this common species in any other of the 

 southern streams. It is probably not rare, however. L. 

 croceus Storer and JV. bellicus Girard, seem to have been 

 based upon it. Some highly colored spring males in my 

 possession from the lakes of Northern Indiana, have the fins 

 bright red, and the red spot on each side of the head, which 

 suggested the name of "biguttatus," very conspicuous. 

 Other spring males have a singular swollen crest on the head. 



4. PHOTOGENIS EURYSTOMUS. Sp. nov. 



Eorm elongated, resembling P. stigmaturus, but heavier forwards, the 

 head more like that of Luxilus coccogenis and L. comutus. Depth 4J in 

 length. 



Head large, rather elongate, about 4 in length, its upper surface rounded 

 and (in males) covered with small tubercles. 



Upper jaw slightly projecting beyond the large, oblique mouth, which 

 reaches to opposite the eye. Eye large, 3| in head. Iris white, as in al- 

 lied species. 



Scales moderately large, rather loose, the edges unusually pale. Lat. 1. 

 38 (37 to 40) ; 16 to 20 scales in front of dorsal. 



Dorsal fin behind ventrals, nearer caudal than snout, low, about 5| in 

 length of body. 



D., I, 8. A., I, 8. Teeth 1, 4-4, 1, entire, without grinding surface. 



Color very pale olive; a faint dark caudal spot. Dorsal with a very 

 faint dusky blotch on its last rays, and its tip, as well as those of the 

 anal and caudal, filled with white pigment. Some of the smaller speci- 

 mens had the caudal chiefly pale red, a red bar across dorsal, and a faint 

 red bar dowu the cheeks, as in L. coccogenis. It is possible that the 

 breeding colors are brilliant, but all my specimens are very pale. 



Habitat. Nancy's Creek, a small tributary of the Chatta- 

 hoochee Kiver above Atlanta, where it is quite abundant. 



