LYMN^LLXE OF NORTH AMERICA. 139 



Lymnaa stagnalis KIRTLAND, Amer. Journ. Sci., i, XXXI, p. 35, fig. 10, 

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 SCUDDER, Bull. Nat. Mus., 23, p. 201, 1885. DALL, Land and F.-W. 

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 SMITH, Nautilus, XX, p. 91, 1907. STERKI, Proc. Ohio State Acad. 

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Lymnea stagnalis SHEPPARD, Trans. Lit. Hist. Soc. Quebec, I, p. 196, 1829. 

 LORD, Nat. in Brit. Col., II, p. 363, 1866. 



Lymneus stagnalis COOPER, Rep. Schoolcraft, Exped., p. 154, 1834. SAGER, 

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 1838. 



Limn&us stagnalis FORBES, Rep. Brit. Asso., VI, p. 146, 1840. PACKARD, 

 Amer. Nat, IX, p. 301, 1875. (Embryology.) 



Limnaa stagnalis GOULD, Bost. Journ Nat. Hist., Ill, p. 488, 1841. CPR., 

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