(of)Kobelt, W. (1876). Beiträge zur arctischen Fauna. <em>Jahrbücher der Deutschen Malakozoologischen Gesellschaft.</em> 3: 61-76, 165-180, 371-373., available online athttp://biodiversitylibrary.org/page/16296331 page(s): 174, pl. 3 fig. 3 [details]
MolluscaBase eds. (2021). MolluscaBase. Sipho gracilis var. glabra Verkrüzen in Kobelt, 1876. 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=752426 on 2024-03-28
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species. Sipho gracilis var. glabra Verkrüzen, 1876. Accessed at: https://www.marbef.org/data/aphia.php?p=taxdetails&id=752426 on 2024-03-28
original description(of)Kobelt, W. (1876). Beiträge zur arctischen Fauna. <em>Jahrbücher der Deutschen Malakozoologischen Gesellschaft.</em> 3: 61-76, 165-180, 371-373., available online athttp://biodiversitylibrary.org/page/16296331 page(s): 174, pl. 3 fig. 3 [details]
basis of recordNorman, A.M. (1902). Notes on the natural history of East Finmark. <em>Annals and Magazine of Natural History.</em> Ser. 7, 10: 341-361, 472-486., available online athttps://www.biodiversitylibrary.org/page/19339146 page(s): 352 [details]