Sheppard, R. (1823). Descriptions of seven new British land and fresh-water shells, with observations upon many other species, including a list of such as have been found in the county of Suffolk. Transactions of the Linnean Society of London. 14 (1): 148-170.
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Sheppard, R.
1823
Descriptions of seven new British land and fresh-water shells, with observations upon many other species, including a list of such as have been found in the county of Suffolk