GG CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY III. 



nnce s'niilar to tbose of tbe species of Gila ; dorsal and ventral regions 

 scaled ; 7-43-5. Lateral line short, decurved, not reaching to base of 

 veutrals, on only 14 scales. 



Teeth 2, 4-5, 2, as in P. neogcens, without masticatory surface. 



Fins small : dorsal well behind ventrals : pectorals reaching nearly 

 to ventrals, the latter to vent. D. I, 8, A. I, 8; the latter fin rather high. 



Coloration that of the species of CUnostomus, especially C. margarita 

 (which species, having the lateral line wanting on the last three to eight 

 scales, might perhaps with propriety be referred to Phoxinus). 



Back dark, the scales profusely punctate: a dusky band formed of 

 dark specks along the sides: cheeks pearly: space below lateral line 

 silvery; in the type-specimen flushed with rich scarlet-red. 



Length of type 2J inches. 



A single specimen taken in Elk River, at Estill Springs, in company 

 with Gila estor, which species it much resembles in color. Phoxinus 

 Jlamnieus bears the same relation to P. ntogans that Gila estor does to 

 the small scaled Gila clongata. 



Genus GILA Baird d Girard. 



(Subgenus CLINOSTOMUS Girard.) 



55. Gila estor Jordan & Brayton. 

 Jordan, Man. Vert. ed. 2d, p. 300. 



A large and handsome species, related to G. tlongaia and G. proriger, 

 but well distinguished from both. 



Body elliptical-elongate, rather deep and compressed; the caudal 

 peduncle long. Greatest depth 4^ in length. Head very long and large, 

 3f in length ; flattish above, but not wide. Mouth exceedingly large, 

 very oblique, the premaxillaries anteriorly on the level of the pupil, the 

 maxillary extending to opposite the middle of the orbit, and the length 

 of the gape of the mouth a little more than half the length of the head. 

 Lower jaw decidedly the longer. 



Eye quite large, less than snout, 4 in head. 



Scales small, but large for the genus, their outlines well defined, espe- 

 cially above, 8-50-5. Lateral line strongly decurved ; about 23 scales 

 on the back anterior to the dorsal fin. 



Fins high. Dorsal I, 8, well behind ventrals, its first ray nearer the 

 caudal than the snout. Anal I, 8, short and high. Pectorals falling 

 jnst short of ventrals, the latter just short of vent. 



Teeth 2, 4-5, 2. 



