Sowerby, G. B. III. (1888). Description of sixteen new species of shells. <em>Proceedings of the Zoological Society of London.</em> 1888: 207-213, pl. 11., available online athttps://www.biodiversitylibrary.org/page/31825676[details]
MolluscaBase eds. (2021). MolluscaBase. Engina angulata G. B. Sowerby III, 1888. Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=449664 on 2024-04-18
original descriptionSowerby, G. B. III. (1888). Description of sixteen new species of shells. <em>Proceedings of the Zoological Society of London.</em> 1888: 207-213, pl. 11., available online athttps://www.biodiversitylibrary.org/page/31825676[details]