250 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Genus 118. ETJTILUS Eafinesque. The Roaches. 



liutllus liafiucsiiue, Iclith. Ohiensis, 48, 50, 1820 (rutiliis). 



Subgenus LKUCOS Ileckel. 



Leucos Ileckel, Russegger's Reisen, 1, 1038, 1843 (cisaljnnus). 



399. Rutilus olivaceus (Cope). 



Lake Taboe; Pjramid Lake. 



Leitcus olivaceus Cope, Proc. Ac. Nat. Sci. Phila. 1883, 145, Pyramid Lake, 

 Nevada. 



Subgenus MYLOLKlIf'US (ope. 



Myloleucus Cope, Bull. TIayden'e GeoL Surv. Mont, for 1871 (1872), 475 {pul- 

 rei'iilentns := symmetricus) , 



400. Rutilus bicolor (Girard). 



Lakes of southeastern Oregon (Klamath, Warner, Goose, etc.). 

 Algansca bicolor Girard, Proc. Ac. Nat. Sci. Phi la. 1856, 183, Klamath Lake, 

 Oregon. 



401. Rutilus .synimetricus (Baird & Girard). 



Rivers of California and Nevada. 



I'ogonichlhtjs symmctricus Baird A: Gii-ard, Proc. Ac. Nat. Sci. Phila. 1854, 136, 

 Fort Miller, San Joaquin Valley, California. 



402. Rutilus boucardi (Ciiinther). 



Cuernavaca, Mexico. 



Leuciscus boucardi Giinther, Cat., vii, 485, 1868, Cuernavaca, Mexico. 



403. Rutilus thoburni Scofield. 



Rio San Lorenzo, Santa Cruz, California. 



Butilus thoburni Scoiield, Proc. Cal. Ac. Sci. 1896, Santa Cruz, California. 



404. Rutilus columbianus Scofield. 



Lower Columbia Basin. 



Butilus columbianus Scofield, Proc. Cal. Ac. Sci. 1896, Lower Columbia Basin. 



Genus 119. LUXILINUS Jordan. 



Luxilinus .Jordan, Catalogue Fishes N. A., 33, 1885 (occiden talis). 



405. Luxilinus occidentalis (Baird «fe Girard). 



San .Joaquin Valley, California. 



Leueosomus occidentalis Baird & Girard, Proc. Ac. Nat. Sci. Phila. 1854, 137, 

 Poso Creek and Four Creeks, tributaries of Tulare Lake, California. 



Genus 120. OPSOPCEODUS Hay. 



Opsopaodus Hay, Proc. U. S. Nat. Mus. 1880, 507 {emilice). 



Subgenus OPSOPCEODUS Hay. 



406. OpaopcBodus osculus Evermann. 



Rio Neches and other streams about Palestine and Houston, Texas. 

 Opsop((odus osculus Evermann, lUill. F. S. Fish Com. 1891 (1892), 82, Neches 

 River, near Palestine, Texas. 



407. Opsopoeodus emiliae Hay. 



Lake Erie and southern Indiana to Georgia and Mississippi. 

 Opsopaodus emilice, Hay, Proc. U. S. Nat. Mus. 1880, 507, Artesia, Macon, and 

 Enterprise, Mississippi. 



408. Opsopoeodus megalops (Forbes). 



Western Ohio to Illinois. 



Trycherodon megalops Forbes, in .Jordan &, Gilbert, Synopsis, 247, 1883, Illi- 

 nois River at Pekiu and Peoria, Illinois. 



