Alder, J. 1848. Catalogue of the Mollusca of Northumberland and Durham. Transactions of the Tyneside Naturalist's Field Club (1848): 97-209. http://biodiversitylibrary.org/page/33670077.
Attributed Nominal Genera
Turtonia Alder, 1848
Alder, 1848. Trans. Tyneside Nat. Field Club (1848): 189.