32 CONTKIBUTIONS TO NOETH AMERICAN ICHTHYOLOGY III. 



Genus PHOTOGENIS Cope. 

 7. Photogenis galacturus {Cope) J. & B. 



Hi/psUepis galacturus Cope (1870), Proc. Ac. Nat. Sc. IGO 



The. most abiindaut fish iu the Tugaloo. Our specimens were very 

 ]>ale ami dull colored, but tbey are uot otberwise different from speci- 

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



Genus HYDROPHLOX Jordan. 

 8. Hydrophlox rubricroceus ( Co])e) J. tD B. 



Hyhopsis ruhricroceus Cope (186S), Journ. Ac. Nat. Sc. 2:>1. 



This surpassingly beautiful little lish 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 tbe 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 tbe fins of a 

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

 full bright scarlet. Head all pale !<carlet-rcd, 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 re«l. 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 alcobol. First 

 ray of dorsal dusky on anterior edge. 



Top of head and whole ante-dorsal region iu males dusted with fine 

 wbite tubercles. 



Female specimens are pale olivaceous or silvery. 



Teeth 2, 4-4, 2, with masticatory surface, tbe edge of which is usually 

 crenate. 



Tbis species and the preceding were hitherto known only i'rom tbe 

 headwaters of tbe Tennessee Eiver. 



Genus CERATICIITHYS Baird. 

 9. Ceratichthys rubrifrons Jordan. 



Novomis ruhrifrons Johdan (1877), Ann. N. Y. Lyceum Nat. Hist. 330. 



A few spt^cimens of tbis species were taken. They were brighter in 

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

 the males bright red, and the fins somewhat rosy. 



