Watson, R. B. (1886). <i>Report on the Scaphopoda and Gasteropoda collected by H.M.S. Challenger during the years 1873-76</i>. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873–76. Zoology 15 (part 42): 1-756, pls 1-50. , available online athttps://www.biodiversitylibrary.org/page/2004568[details]
MolluscaBase eds. (2021). MolluscaBase. Utriculus tornatus R. B. Watson, 1883. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2021) European Register of Marine Species at: http://www.vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=750956 on 2023-02-07
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2023). European Register of Marine Species. Utriculus tornatus R. B. Watson, 1883. Accessed at: https://www.vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=750956 on 2023-02-07
original descriptionWatson, R. B. (1886). <i>Report on the Scaphopoda and Gasteropoda collected by H.M.S. Challenger during the years 1873-76</i>. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873–76. Zoology 15 (part 42): 1-756, pls 1-50. , available online athttps://www.biodiversitylibrary.org/page/2004568[details]