FISHES OF THE SANTEE BASIN. 23 



pyrrhomelas, Photogenis niveus, Alburnopschlorocephalus, and other hand- 

 some species. 



19. CODOMA PYRRHOMELAS (Cope) Jor. 

 Photogenis pyrrhomelas COPE (1870), Proc. Am. Philos. Soc. Phila. 463. 



This species, the most ornate of the genus, and one of the most bril- 

 liant of Cyprinidce, is extremely abundant in the clear rapid waters of 

 the Saluda and its tributaries. The general color of the males is dark 

 steel-blue above, with the scales darker-edged, the be lly abruptly milky- 

 white. The head is pale reddish ; the snout, the tip of lower jaw, and 

 the iris above and below are scarlet; the dorsal fin is dusky at base, 

 has a large black spot on the last rays, is red in front, and broadly milk- 

 white at tip. The tips of the caudal tin are milk-white; next to this 

 cotnes a dusky crescent ; a wide bright scarlet crescent lies inside of the 

 black and extends into the two lobes of the fin. The base of the tin is 

 pale. 



The top of the head and the region in front of the dorsal are covered 

 with small pale tubercles. The sides of the caudal peduncle are pro- 

 vided with rather larger tubercles, arranged in rows along the series of 

 scales. 



This is the most abundant fish io the waters of Catawba River, accord- 

 ing to Professor Cope. 



Genus NOTROPIS Eafinesque. 



(Minnilu* Rafinesque; Alburnellus Girard.) 



20. XOTROPIS PHOTOGENIS (Cope) Jordan. 



Squalius photogenis COPE (1864) Proc. Ac. Nat. Sc. 280. 



Photogenis leitcops COPE (I860), Trans. Am. Phil. Soc. 379, and elsewhere. 



My specimens diifer considerably from the typical forms of this spe- 

 cies, but correspond to Professor Cope's u var. a a a a a 77 from the Ca- 

 tawba. It is the most abundant species in the Saluda waters, especially 

 in more sluggish tributaries. Two forms, perhaps varieties, perhaps 

 different sexes, occur, the one pale, with deep, compressed body ; the 

 other darker, with the scales dark-edged and the body much more elon- 

 gate. It is difficult to distinguish the latter form from N. telescopus 

 (Cope). The pale form has the head above and under jaw covered with 

 small pointed tubercles. 



