106 U. S. BUREAU OF FISHERIES 



738. Catostomus occidentalis Ayres. Sacramento sucker. 



Streams of northern and central California and southern Oregon. 



Catostonms occidentalis Ayres, Proo. Calif. Acad. Nat. Sci., I, 18.54, IS, 

 San Francisco. 



Catostomus lahiatus Ayres, loc. cit., 1855, 32, San Joaciuin River, Stock- 

 ton, Calif. 



Catostomus arseopus Jordan, Bull. U. S. Nat. Mus., XII, 1878, 173, 

 South Fork of Kern River, Calif. 



739. Catostomus tsiltcoosensis Evermann and Meek. 



Coastal streams of Oregon. 



Catostomus tsiltcoosensis Evermann and Meek, Bull. U. S. Fish Com., 

 XVII, 1897, 66, fig. 1, Tsilcoos Lake, Lane Co., Oreg. 



740. Catostomus snyderi Gilbert. 



Klamath Basin, California and Oregon. 



Catostomus snyderi Gilbert, Bull. U. S. Fish Com., XVII, 1897 (Jan. 6, 

 1898), 3, Upper Klamath Lake, Oreg. 



741. Catostomus microps Rutter. 



Streams of the lava beds of California. 



Catostomus microps Rutter, Bull. U. S. Bur. Fish., XXVII, 1907 (1908), 



120, fig. 1; Rush Creek, a tributary of Ash Creek, Aden, Modoc Co., 



Calif. 



742. Catostomus macrocheilus Girard. Columbia River sucker; Biglip sucker. 



Columl)ia River Basin, as far up as Flathead Lake, Montana; Upper 

 Salmon Falls and the headwaters of Salmon River, Idaho. 



Catostomus macrocheilus Girard, Proc. Acad. Nat. Sci. Phila., VIII, 

 1856, 175, Astoria, Oreg. 



743. Catostomus insignis Baird and Girard. 



Gila Basin, Ariz. 



Catostomus insignis Baird and Girard, Proc. Acad. Nat. Sci. Phila., 



VII, 1854, 28, Rio San Pedro, Ariz. 

 Catostomus gila Kirsch, Proc. U. S. Nat. Mus., XI, 1888, 555, Rio Gila, 



Fort Thomas, Ariz. 



744. Catostomus bernardini Girard. 



San Bernardino Creek, a tributary of Rio Yacjui, on the boundary of 



Arizona and Sonora. 

 Catostomus bernardini Girard, Proc. Acad. Nat. Sci. Phila., VIII, 1856, 



175, San Bernardino Creek, Ariz. 



745. Catostomus sonoriensis Meek. 



Rivers of Sonora on the Pacific slope. 



Catostomus sonoriensis Meek, Field Col. Mus., Zool., Ser. Ill, No. 6, 



May, 1902, 75, PI. XVI, Rio Paphigtjchic, Miiiaca, Chihuahua, 



Mexico. 



Subgenus CATOSTOMUS LeSueur. 



746. Catostomus catostomus (Forsler). Long-nosed sucker; Northern sucker; 



Red sucker; Black sucker (Sandusky, Ohio); Sturgeon sucker. 

 Great Lakes; uj^per Mi.ssouri River; Ohio Basin; West Virginia; 



upper Columbia; eastward to Maine anrl northwestward to Alaska; 



very abundant northward. 

 Cyprinus catostomus Forstcr, Philos. Trans., LXIII, 1773, 155, tab. 6, 



streams about Hudson Bay. 

 Catostomus longirostrum and hudsonius LeSueur, Jour. Acad. Nat. Sci. 



Phila., I, 1817, 102, 107, Vermont; after Forster. 

 Catostomus forsterianus Richardson, Franklin's Jour., 1823, 720, Lake 



Huron; Great Slave Lake. 

 Catostomus aurora Agassiz, Lake Superior, 1850, 360, Lake Superior. 

 Catostomus nanomyzon Mather, Twelfth Rep., N. Y. Fish Com., Surv. 



of Adirondacks, 1884, 36, Big Moose Lake, northern New York; 



dwarf f(^rm. 



747. Catostomus richardsoni Harper and Nichols. Gray sucker. 



Streams of northwestern Canada. 



Catostomus richardsoni Harjjer and Nichols, Bull., Amer. Mus. Nat. 

 Hist., XLI, 1919, 263, PI. XV, fig. 1, type locality not designated. 



