CHECK-LIST OF NORTH AMERICAN FISHES. 247 



368a. Semotilus atromaculatiis thoreauianus (Jordau). 

 Streams of Georgia and Alabama. 



Seinotilus thoreauianus Jordau, Bull. U. S. Nat. Mus., x, 63, 1877, Fliut River, 

 Georgia. 



Genus 114. POGONICHTHYS Girard. 



FogouichtJu/s Girard, Proc. Ac. Nat. Sci. Phila. 1854, 136 (ina'quiloiu8 = macro- 



lepidotus). 



369. Pogonichthys maciolepidotus (Ayres). Split-tail. 



Lowland streams of Califoruia. 



Leiicisciis macrolepidotus Ayres, Placer Times and Transcript, May 30, 1854, 

 Sau Francisco. 



Genus 115. PTYCHOCHEILUS Agassiz. 



Ptychochcilus Agassiz, Am. Jour. Sci. Arts 1855, 229 {gracilis ^oregonensis). 



370. Ptychocheilus oregoiiensis (Richardson). Squawfish; Chappaul; TelloicieUy; 



Sacramento Pike. 

 Rivers of Oregon and Washington, in the Columbia basin to Montana and 



Idaho, and northward to British Columbia; also in the Sacramento, 



San Joaquin, Salinas, and Pajaro rivers of California. 

 Cyprinns {Leuciscus) uregonensis Richardson, Fauna Bor.-Amer., iii, 305, 1836, 



Columbia River. 



371. Ptychocheilus harfordi Jordan & Gilbert. 



Lower Sacramento River, California. 



rtychochilns harfordi Jordan & Gilbert, Proc. U. S. Nat. Mus. 1881, 72, Sacra- 

 mento River, California. 



372. Ptychocheilus lucius Girard. " White Salmon" of the Colorado. 



Colorado Basin; abundant. 



I'tychocheilus lucius Girard, Proc. Ac. Nat. Sci. Phila. 1856, 209, Rio Colorado. 



Genus 116. GILA Eaird & Girard. 



Gila Baird & Girard, Proc. Ac. Nat. Sci. Phila. 1853, 368 (rohusta). 



373. Gila elegans Baird &, Girard. Bony-tail; " Gila Trout." 



Colorado and Gila rivers. 



Gila elegans Baird tfc Girard, Proc. Ac. Nat. Sci. Phila. 1853, 369, Zuui, Colo- 

 rado, and Gila rivers. 



374. Gila robusta Baiid & Girard. Pound-tail. 



Tributaries of the Rio Colorado and Rio Gila. 



Gila rohusta Baird & Girard, Proc. Ac. Nat. Sci. Phila. 1853, 368, Zuui River, 

 New Mexico. 



/ 



375. Gila seminuda Cope & Yarrow. 



Rio Yirgen, in Utah and Nevada. 



Gila seminuda (Jope & Yarrow, Zool. Wheeler's Espl. W. 100th Mer., v, 666, 

 1875 (1876), Rio Virgen, Nevada. 



Genus 117. LEUCISCUS Cuvier. 

 Leuciscus (Klein) Cuvier, Regno Animal, ed. i, 194, 1817 (dohula, rutilus, leucis- 

 cus, alburnus, iiud phoxinus). 



Subgenus SIBOMA Girard. 



Sihoma Girard, Proc. Ac. Nat. Sci. Phila. 18.56, 208 {crassicauda) . 



376. Leuciscus crassicauda (Baird &. Girard). Sacramento Chub. 



Rivers of California; generally abundant in the Sacramento and San .Joaquin. 

 Lavinia crassicauda Baird & Girard, Proc. Ac. Nat. Sci. I'hila. 1854, 137, San 

 Joaqtiin River, California. 



