FAMILY SPH^RIID^ 



[39 



Prime lla raytnondi Qoov^v., op. at., p. 82. 



i>phcerium cooperianuDi Fkimk, Cat. Corbie, Am. Journ. Conch., v, p. 152, 

 1869, nude name. 



Range. — Alpine region of the Sierra Nevada, Calif., to 8,700 feet ; 

 Seattle, Spokane Falls, and Chehalis River, Wash. ; Idaho ; Vancouver 

 Island, British Columbia (Roper). 



Sphaerium (Musculium) partumeium Say. 



Cyclas partumeia Say, Journ. Acad. Nat. Sci. Phila., 11, p. 380, 1822. 

 Spharium pariunuiiim Prime, Mon. Am. Corbie, p. 45, fig. 42, 1865. 



Range. — United States from Nebraska eastward, south to the Gulf 



of Mexico and north to Manitoba. 



Sphaerium (Musculium) jayanum Prime. 



Cyclas jayensis Prime, Proc. Boston See. Nat. Hist., iv, p. 157, 1851. 

 Spharium jayatiuni Prime, Mon. Am. Corbie, p. 46, fig. 43, 1865. 



Range. — Northern United States from Iowa eastward, Canada, 



and northward. 



Fig. ioS. S p It crrium jayanum Prime. 



Lake Superior; Fort Ellice, Manitoba; in Alberta at McLeod, 

 Olds, Crow Lodge Creek, and Little Bow River. 



Sphaerium (Musculium) tenue Prime. Figure 109. 



Cyclas tenuis Pri.me, Proc. Boston Soc. Nat. Hist., p. 161, 185 1. Andros- 

 coggin River, Maine. 

 Spharium tenue Prime, Mon. Am. Corbie, p. 47, fig. 44, 1865. 



Range. — Maine, Canada, British America and northern Alaska. 



Souris River, Manitoba ; Saskatchewan River at Grand Rapids ; 

 Upper Mackenzie River at old Fort Simpson ! left bank of the Yukon, 

 thirty miles below the Tanana River mouth, Alaska ! 



Sphaerium (Musculium) transversum Say. Figure no. 



Cyclas transversa Sav, New Harm. Disseminator, 11, p. 356, 1829. 

 Spharium transversum Prime, Mon. Am. Corbie, p. 48, fig. 45, 1865. 



Range. — LTnited States east of the Rocky Mountains and northward 

 to Canada and Manitoba. 



