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Encyclopedia Dubuque


"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN

Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.


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DEERTOE. Mussel. Historically this species of mussel was considered widespread and common. While its condition is considered healthy, this mussel is less widespread. The adult reaches a length from 1.5 to 2 inches. There is no known host fish.