244 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Genus 102. ORTHODON Girard. 



Ortliodoii (iirard, I'roc. Ac. Xat. Sci. Phila. 18.o6, 182 {microlepidota). 



341. Orthodon microlepidotus (Ayres). Blaclcfish. 



Lower Sacramento and San Joaquin rivers. 



Gila microJepidota Ayros, Proc. Cal. Ac. Sci., i, 1855, 21, Sacramento and San 

 Joaijuin rivers, California. 



Genus 103. OXYGENEUM Forbes. 



Oxygeneum Forbes, Bull. 111. Lab. Nat. Hist., ii, 136, 1885 {pidveridcntiivi). 



342. Oxygeneum pulveriilentuni Forbes. 



Illinois River. 



Oxijgeneum pulvirnhntum Forbes, ]5nll. 111. I^ab., ii, 136,1885, Illinois River. 



Genus 104. ACROCHEILUS Agassiz. Chisel-moKths. 



Acrochcihts Agassiz, Am. Jour. Sci. Arts 18.55, 211 (aluiaceus). 



343. Acrocheiliis alutaceus Agassiz &. Pickering. Chisel-moutli ; Sijuarc-mouih ; 



llard-mouth. 

 Lower Columbia River, as far up as Spokane and Shoshone Falls. 

 Acrocheilus alutaceus Agassiz & Pickering, Am. Jonr. Sci. Arts, xix, 1855, 



214, Willamette Falls and Walla Walla River, Oregon. 



Genus 105. LAVINIA Girard. 



Larlnia (iirard, I'roc. Ac. Nat. Sci. Phila. 1854, 137 (exilicauda). 



344. Laviiiia exilicauda Baird & Girard. Hitch; Chi. 



Streams of the Coast Range about San Francisco and Monterey ; locally com- 

 mon as far nortb as Clear Lake, California. 



Lavinia csilicanda Baird & Girard, Proc. Ac. Nat. Sci. Phila. 1854, 137, 

 Sacramento River, California. 



Genus 106. CHROSOMUS Rafmesque. 



Clirosomus Raliuesquc, Ichth. Ohiensis, 47, 1820 {erythrogaster). 



345. Chrosomus erythrogaster Rafinesque. Bed-hellied Dace. 



New Brunswick to Ohio, Michigan, Iowa, and northern Alabama. 

 Chrosomus erythrogaster Rafinesque, Ichth. Ohiensis, 47, 1820, Ohio River. 



345a. Chrosomus erytlirogaster eos Cope. 

 Su8(iuehanna River. 



Chrosomus eos Cope, Proc. Ac. Nat. Sci. Phila. 1861,523, Meshoppen Creek, 

 Sus(2uehanna County, Pennsylvania. 



346. Chrosomus dakotensis Evermann & Cox. 



Missouri River basin in Nebraska and South Dakota. 



Chrosomus dakoteusis Evermann & Cox, Report U. S. Fish Com. 1894 (1896), 

 395, Crow Creek, Chamberlain, South Dakota. 



347. Chrosomus oreas Cope. 



Headwaters of Roanoke River, and clear tributaries of the Tennessee River. 

 Chrosomus oreas Cope, Jour. Ac. Nat. Sci. Phila. 1868, 233, head of Roanoke 

 River, Montgomery County, ^'irgiuia. 



Genus 107. ALGANSEA Girard. 



Ahjansea Girard, Proc. Ac. Nat. Sci. Phila. 18.56, 184 (tincella). 



343. Algansea tincella (Cuvier & Valenciennes). 

 Lakes about the City of Mexico. 



Leucisciis tincella Cuvier &. Valenciennes, Hist. Nat. Poiss., xvii, 323, 1844, 

 City of Mexico. 



349. Algansea lacustris Steindachner. 

 Lake P^tzcuaro, Mexico. 



AlgausKt lacustris Steindachner, iOiuigc J'ischarten Mexico's, 10, pi. 3, figs. 

 1-16, 1895, Lake Piitzcuaro, near City of ^Mexico. 



