original descriptionPfeiffer, L. (1855). Ueber die Gattung Ennea H. et A. Adams. <em>Malakozoologische Blätter.</em> 2(2). 58-63 (February)., available online athttps://www.biodiversitylibrary.org/page/15864799 page(s): 60 [details]
basis of recordPfeiffer, L. (1855). Descriptions of forty-seven new species of Helicea, from the collection of H. Cuming. <em>Proceedings of the Zoological Society of London.</em> 23 (290): 91–101, pl. 31. London [23 July]., available online athttps://www.biodiversitylibrary.org/page/30747974 page(s): 100 [details]