[101] FISHERIES OF THE UNITED STATES. 487 



Genus MYLOPHARODON Ayres. 



140. JfEylophairodoii coiaoceplaaliis (B. & G.) Girard. 



Gila concepliala B. & G., Proc. Acad. Nat. ScL, Phila,,l-54, p. 134. 

 Mylopharodon robustus Ayees, Proc. Cal. Acad. Nat. Sci., 1855, p. 33. 



Eivers of California. 



This species grows very large, reaching 18 inches in 

 length; it is used for food. 

 G185. (Poor specimen.) Chico Creek, California. J. S. Newberry. 



Genus PTYCHOCHILUS Agassiz. 



141. Ptycliochilus ©ireg'OBBenisIs (Rich.) Girard. Sacra- 



mento "Pike"; "Whitefish." 

 Rivers of the Pacific slope, chiefly west of the Sierra 



Nevada (Jordan & Gilbert). 

 This fish is said to reach a length of 5 feet; it is used 



for food; in cold streams its flesh is excellent, as, for 



example, in the McCloud, where it sometimes weighs 



as much as 28 pounds. 

 32498. Port ToAvnseud, Washington Territory. J. G. Swa.n. 



Genus GILA Baird & Girard. 



14S. Gila rofousta Baird & Girard. 



Rio Colorado and Rio Gila and their tributaries. 

 The species reaches one foot in length. 



15805. Zuiii, New Mexico. H. W. Henshaw. 



Genus SQUAL1US Bonaparte. 



Subgenus Clinostomus Girard. 



1425. §<] u alius elongatus (Kirt.) Jor. & Gilb. Red-sided Shi- 

 ner ; Red sided Minnow. 



Luxilus elongatus Kirtland, Rcpt. Zool. Ohio, p. 161), and Boston Journ. 



Nat, Hist., iii, p. 339. 

 Gila tlongaia Jordan, Man. Vert. E. U. S., 187C, p. 285. 



Western Pennsylvania; Ohio Valley; Great Lakes; 

 Upper Mississippi Valley. 



8727. Yellow Creek, Ohio. Prof. S. F. Baird. 



Subgenus Tigoma Girard. 



144. Squalius aliciae Jouy. 



Known at present from Utah Lake only, where it is 

 abundant. 

 30805. Utah Lake, Utah. Peter Madsen. 



