Watson, R. B. (1897). On the marine Mollusca of Madeira; with descriptions of thirty-five new species, and an index-list of all the known sea-dwelling species of that island. <em>Journal of the Linnean Society of London, Zoology.</em> 26(19): 233-329, pl. 19-20., available online athttp://www.biodiversitylibrary.org/page/31882661 page(s): 248-250; pl. 19 fig. 16 [details]
MolluscaBase eds. (2021). MolluscaBase. Natica (Nacca) furva R. B. Watson, 1897. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2021) European Register of Marine Species at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=749483 on 2024-03-29
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species. Natica (Nacca) furva R. B. Watson, 1897. Accessed at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=749483 on 2024-03-29
original descriptionWatson, R. B. (1897). On the marine Mollusca of Madeira; with descriptions of thirty-five new species, and an index-list of all the known sea-dwelling species of that island. <em>Journal of the Linnean Society of London, Zoology.</em> 26(19): 233-329, pl. 19-20., available online athttp://www.biodiversitylibrary.org/page/31882661 page(s): 248-250; pl. 19 fig. 16 [details]