258 AMERICAN JOURNAL 



50. A. LANCEATA, Gould. 



Limnsea lanceata, Gould. — Proc. Bost. Soc. Nat. Hist., vol. 

 iii, p. 64. 1848. 

 Lake Superior, p. 244, t. 7, f. 8,9. 1850. 



Habitat. — Lake Superior, (Gld.) 



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