136 U. S. BUREAU OF FISHERIES 



1009. Hybopsis anogenus (Forbes). 



Western New York (Cayuga Lake) to northern Illinois. 

 Notropis anogenus Forbes, Bull. 111. Lab. Nat. Hist., II, 1885, Art. 2, 

 138, Fox River, McHenry, 111. 



1010. Hybopsis heterodon (Cope). 



S'ew York to ISIit-higan and Kansas; common. 



Alburnops heieriMon Cope, Proc. Acad. Nat. Sci. Phila., XVI, 1864, 



281, Lansing; Grosse Isle, Mich. 

 Notropis germanits Hay, Proc. U. S. Nat. Mus., X, 1887, 252, Smoky 



Hill River, Wallace, Ivans. 



1011. Hybopsis heterodon richardsoni (Hubbs and Greene). 



Fox River System, tributary to Green Baj', Wis. 



Notropis heterodon richardsoni Hubbs and Greene, Univ. Mich. Mus. 



Zool., Misc. Pub. 15. 1926, 39, PI. Ill, fig. 1, Fox River, opposite 



Lock 25, Columbia County, Wis. 



1012. Hybopsis jordani (Eigenmann and Eigenmann). 



South Saskatchewan River, Medicine Hat, Assiniboia. 



Notropis albeolus Eigenmann and Eigenmann, Amer. Nat., 1893, 152, 



Medicine Hat, Assiniboia; name preoccupied. 

 Notropis jordani Eigenmann and Eigenmann, loc. cit., 592, substitute 



for Chriope albeolus, preoccupied in Notropis but not in Chriope. 



Genus 333. PLATYGOBIO Gill. 



Platygobio Gill, Trans. Amer. Phil. Soc, V, 1863, 178 {Pogonichthys 

 communis Givard = Cyprinus (Leuciscus) gracilis Richardson). 



1013. Platygobio gracilis (Richardson). Flat-headed chub. 



East slope of the Rocky Mountains, from the jNlissouri and Yellowstone 



Rivers to the Saskatchewan; abundant in river channels as far south 



as Kansas City. 

 Cyprinus (Leuciscus) gracilis Richardson, Fauna Bor.-Amer., Fishes, 



1836, 120, Saskatchewan River at Carleton House. 

 Coregonus angusticeps Cuvier and Valenciennes, Hist. Nat. Poiss., 



XXI, 1848, 389-390 (534), Saskatchewan River. 

 Pogonichthys communis Girard, Proc, Acad. Nat. Sci. Phila., VIII, 



1856, 188, Yellowstone River, Fort Pierre, Nebr., etc. 

 Pogonichthys (Platygobio) gulonellus Cope, loc. cit., XVI, 1864, 277, 



near Bridgers Pass, Wyo. 



1014. Platygobio physignathus (Cope). 



Upper waters of Arkansas River; very abundant in the channels; the 



most common fish at Pueblo, Colo. 

 Ceratichthys physignathus Cope, Wheeler Surv., V, Zool., 1875 (1876), 



651, Arkansas River, Pueblo, Colo. 



1015. Platygobio pallidus Forbes. 



One specimen from Ohio River at Cairo, 111. 



Platygobio pallidus Forbes, in Jordan and Gilbert, Synopsis, 1883, 220, 

 Ohio River at Cairo, 111. 



Genus 334. CGUESIIJS Jordan. 



Couesius Jordan, Hayden's Geol. Surv. Terr., IV, 1878, 785 (Nocomis 

 milneri Jordan = f7o/Ho plumbeus Agassiz). 



1016. Couesius squamilentus (Cope). 



Henry Fork of Green River in southwestern Wyoming. 

 Ceratichthys squamilentus Cope, Hayden's Geol. Surv. Wyo., 1870, 442, 

 Henry Fork of Green River, Wyo., Colorado Basin. 



1017. Couesius plumbeus (Agassiz). Chub minnow; Lake chub; Plumbeua 



minnow; Moose Lake minnow. 

 Streams and lakes from Lake Superior east to the Adirondack region 



and New Brunswick; not very common except northward. 

 Gobio plumbeus Agassiz, Lake Superior, 1850, 366, Lake Superior. 

 Ceratichthys prosthemius Cope, Trans. Amer. Phil. Soc, XIII, 1867, 



Montreal River, Keweenaw Point, Lake Superior. 

 Nocomis milneri Jordan, Bull. U. S. Nat. Mus., X, 1877, 64, Lake 



Superior. 



