FAMILY SPH^ERIID^E 139 



Primella rayinondi COOPER, op. cit., p. 82. 



Sphcerium cooperianum PRIME, 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., n, p. 380, 1822. 

 Sph&rium partumeium 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 Soc. Nat. Hist., iv, p. 157, 1851. 

 Sphcerium jayanum PRIME, Mon. Am. Corbie., p. 46, fig. 43, 1865. 



Range. Northern United States from Iowa eastward, Canada, 

 and northward. 



FIG. 108. Sphcerium 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 PRIME, Proc. Boston Soc. Nat. Hist., p. 161, 1851. Andros- 



coggin River, Maine. 

 Sphczrium 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 1 10. 



Cyclas transversa SAY, New Harm. Disseminator, n, p. 356, 1829. 

 Sphcerium transversum PRIME, Mon. Am. Corbie., p. 48, fig. 45, 1865. 



Range. United States east of the Rocky Mountains and northward 

 to Canada and Manitoba. 



