32 CONTRIBUTIONS TO NOETH AMERICAN ICHTHYOLOGY III. 



Genus PHOTOGENIS Cope. 

 7. PHOTOG-ENIS GALACTURUS (Cope) J. & B. 



Hypsilepis galacturus COPE (1870). Proc. Ac. Nat. Sc. 160 



The most abundant fish iii the Tugaloo. Our specimens were very 

 pale and dull colored, but they are not otherwise different from speci- 

 mens of P. galacturus from the Tennessee and Cumberland Eivers. 



Genus HYDROPHLOX Jordan. 

 8. HYDROPHLOX RUBRICROCEUS ( Cope) J. & B. 



Hybopsis rubricroceus COPE (1863), Journ. Ac. Nat. Sc. 231. 



This surpassingly beautiful little fish abounds in the rock-pools of the 

 smaller tributaries of the Tugaloo. In Toccoa Creek, it is very abun- 

 dant, far outnumbering all other species. We obtained many speci- 

 mens from the pool at the foot of Toccoa Falls. 



The life-colors are as follows : Dark steel-blue ; a dark lateral band of 

 coaly punctulations, which is usually distinct on the anterior half of 

 body, and passes through the eye around the snout. All the fins of a 

 rich clear red ; the dorsal rather crimson, the caudal pink, the lower fins 

 full bright scarlet. Head all pale scarlet-red, the lower jaw flushed, as 

 if bloody, a lustrous streak along the sides, below which is a distinct 

 silvery lustre. Eyes silvery, somewhat flushed with red. In high 

 coloration, the entire body becomes more or less red. This red pig- 

 ment becomes more evident when a fish is first placed in alcohol. First 

 ray of dorsal dusky on anterior edge. 



Top of head and whole ante-dorsal region in males dusted with tine 

 white tubercles. 



Female specimens are pale olivaceous or silvery. 



TcMth 2, 4-4, 2, with masticatory surface, the edge of which is usually 

 eremite. 



This species and the preceding were hitherto known only from the 

 headwaters of the Tennessee Eiver. 



Genus CERATICIITHYS Baird. 

 9. CERATICIITHYS RUBRIFRONS Jordan. 



Nocomis rubrifrom JORDAN (1877), Ann. N. Y. Lyceum Nat. Hist. 330. 



A few specimens of this species were taken. They were brighter in 

 color than the original types from the Ocmulgee. The muzzle was in 

 the males bright red, and the fins somewhat rosy. 



