(ofBulla umbilicata Montagu, 1803)Montagu, G. (1803). Testacea Britannica or natural history of British shells, marine, land, and fresh-water, including the most minute: Systematically arranged and embellished with figures. J. White, London, Vol. 1, xxxvii + 291 pp;; Vol. 2, pp. 293–606, pl. 1-16., available online athttp://www.biodiversitylibrary.org/item/78694 page(s): vol. 1, p. 222 [details]
Distribution Range: 46°N to 39.77°N; 70.17°W to 66°W. Distribution: Canada; Canada: Gulf of St. Lawrence, Nova Scotia to New England.
Distribution Range: 46°N to 39.77°N; 70.17°W to 66°W. Distribution: Canada; Canada: Gulf of St. Lawrence, Nova Scotia to New England. [details]
MolluscaBase eds. (2024). MolluscaBase. Retusa umbilicata (Montagu, 1803). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=156376 on 2024-10-13
original description(ofBulla umbilicata Montagu, 1803)Montagu, G. (1803). Testacea Britannica or natural history of British shells, marine, land, and fresh-water, including the most minute: Systematically arranged and embellished with figures. J. White, London, Vol. 1, xxxvii + 291 pp;; Vol. 2, pp. 293–606, pl. 1-16., available online athttp://www.biodiversitylibrary.org/item/78694 page(s): vol. 1, p. 222 [details]