6G CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY — ITT. 



nnce s'milar to those of the s|)ecies of Gila ; dorsal and ventral regions 

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

 ventrais, on only 1-i scales. 



Teeth 2, 4-5, 2, as in P. ncog(eu8, without masticatory surface. 



Fins small : dorsal well behind ventrais : pectorals reaching nearly 

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



Coloration that of the s[)ecies of CJi)wstomj(s, psjiecially C. vinrparita 

 (which .si)ecies, 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 si<les : cheeks pearly: space below lateral line 

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



Length of type 2J inches. 



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

 with Gila estor, which species it much resen)l)les in color. PhoxinuH 

 fiamuicus bears the same relation to P. luogans that Gila cutor does to 

 the small sealed Gila clongata. 



Genus GILA Baud d; Guard. 



(Subgenus CLINOSTOMUS Girard.) 



55. Gila estor Jordan <£• Brayton. 



Jordan, Man. Vert. ed. 2d, p. :{00. 



A large and handsome species, related to G. clongata and G. prorigcr^ 

 but well distinguished from both. 



Body elliptical elongate, rather deep and compressed; the caudal 

 ))e(lnncle long. Greatest depth 4J in length. Ileiid very long and large, 

 3rJ in length ; llattish above, but not wide. ]\louth exceedingly large, 

 very obli(pie, the premaxillaries anteriorly on the level of the i)upil, 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 «]uite large, less than snout, 4 in head. 



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

 cially above, S-5U-5. Lateral line strongly decurved ; about 23 scales 

 on the l>ack anterior to the dorsal fin. • 



Fins high. Doisal I, S, well behind ventrais, its first ray nearer the 

 caudal than the snout. .\nal 1, 8, short and high. Pectorals falling 

 just short of ventrais, the latter just short of vent. 



Teeth 2, 4-5, 2. 



