Encyclopedia Dubuque
"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.” —Marshall Cohen, CNN
Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association
FAT POCKETBOOK
FAT POCKETBOOK. Found in the mud of slow-moving large rivers, this species of mussel is rare and considered endangered. The typical adult is from 4 to 5 inches in length. Its host in the freshwater drum.