Bonnevie K. (1920). Heteropoda. <i>Report on the scientific results of the "Michael Sars" North Atlantic deep-sea expedition 1910 3(2) Zoology</i>: 1-69, pl. 1-9[details]
MolluscaBase eds. (2024). MolluscaBase. Pterotrachea hippocampus var. apunctata Bonnevie, 1920. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=752168 on 2024-05-09
original descriptionBonnevie K. (1920). Heteropoda. <i>Report on the scientific results of the "Michael Sars" North Atlantic deep-sea expedition 1910 3(2) Zoology</i>: 1-69, pl. 1-9[details]