Ponder, W. F. (1983). Rissoaform gastropods from the Antarctic and sub-Antarctic. The Eatoniellidae, Rissoidae, Barleeidae, Cingulopsidae, Orbitestellidae and Rissoellidae (Mollusca: Gastropoda) of Signy Island, South Orkney Islands, with a review of the Antarctic and sub-Antarctic (excluding southern South America and the New Zealand sub-Antarctic islands) species. <em>British Antarctic Survey, Scientific Reports.</em> 108: 1-96., available online athttps://nora.nerc.ac.uk/id/eprint/509177/ page(s): 28 [details]
MolluscaBase eds. (2025). MolluscaBase. Skenella umbilicata Ponder, 1983. Accessed through: RAS (Eds.) (2025) Register of Antarctic Species at: https://ras.biodiversity.aq/aphia.php?p=taxdetails&id=197450 on 2025-04-18
RAS (Eds.) (2025). Register of Antarctic Species. Skenella umbilicata Ponder, 1983. Accessed at: https://ras.biodiversity.aq/aphia.php/www.pfeil-verlag.de/04biol/aphia.php?p=taxdetails&id=197450 on 2025-04-18
original descriptionPonder, W. F. (1983). Rissoaform gastropods from the Antarctic and sub-Antarctic. The Eatoniellidae, Rissoidae, Barleeidae, Cingulopsidae, Orbitestellidae and Rissoellidae (Mollusca: Gastropoda) of Signy Island, South Orkney Islands, with a review of the Antarctic and sub-Antarctic (excluding southern South America and the New Zealand sub-Antarctic islands) species. <em>British Antarctic Survey, Scientific Reports.</em> 108: 1-96., available online athttps://nora.nerc.ac.uk/id/eprint/509177/ page(s): 28 [details]
basis of recordEngl, W. (2012). <i>Shells of Antarctica</i>. Hackenheim: Conchbooks. 402 pp. [details]