138 LAND AND FRESH WATER MOLLUSKS 



Sphaerium patella Gould. 



Cyc las patella Gould, Proc. Boston Soc. Nat. Hist., lii, p. 292, 

 1850; U. S. Expl. Exped. Moll., p. 426, pi. xxxvi, figs. 527, 

 a-b, 1852. 

 Sphcerium patella Prime, Mon. Am. Corbie, p. 42, fig. 36, 1865. 



Fig. 105. Range. — Northern California to British Columbia. 

 SphcEr- Healdsburg, Calif. ! Wall awalla, Vancouver and Seattle, 

 / II ^^^' ' Nanaimo, and in duck's crop at Pender Island ! 

 British Columbia. 



Sphaerium emarginatum Prime. 



Cyclas emarginata Prime, Proc. Boston Soc. Nat. Hist., iv, p. 156, 1851. 

 sphcerium emarginatum Prime, Mon. Am. Corbie, p. 43, fig. 38, 1865. 



Range. — Lake Superior ; Saskatchewan River at Grand Rapids, 

 near Lake Winnipeg ! 



107 

 Sphcerium emarginatum Prime. 

 Sphcerium Jlavum Prime. 



♦Sphaerium flavum Prime. 



Cyclas fiava Prime, Proc. Boston Soc. Nat. Hist., iv, p. 155, 1851. 

 Sphcerium fiavum Prime, Mon. Am. Corbie, p. 43, fig. 39, 1865. 

 Range. — Lake Superior ; Sault Ste. Marie, Mich. 



Sphaerium tumidum Baird. 



Sphcerium tumidum Baird, Proc. Zool. Soc. London, 1863, p. 69. — Prime, 

 Mon. Am. Corbie, p. 44, 1865. 



Range. — Sumas Prairie, Fraser River valley, British Columbia. 

 This species appears not to have been figured or subsequently recog- 

 nized by collectors. 



Sphaerium spokani Baird. 



Sphcerium spokani Baird, Proc. Zool. Soc. London, for 1863, p. 69. — Prime, 

 Mon. Am. Corbie, p. 44, 1865. 



Range. — Spokane and Kootenai Rivers, eastern British Columbia. 

 Unfigured, and not recognized by later collectors. 



Sphaerium (Musculium) raymondi Cooper. 



Sphcerium raymondi J. G. Cooper, Proc. Acad, Sci. Calif., 2d series, iii, p. 

 74, pi. I, figs. 1-8, 1890. 



