original description
Broderip, W. J. & Sowerby, G. B. I. (1832-1833). [Descriptions of new species of shells from the collection formed by Mr. Cuming on the western coast of South America, and among the islands of the southern Pacific Ocean.]. <em>Proceedings of the Committee of Science and correspondence of the Zoological Society of London.</em> Part II for 1832: 25–33 [21 April 1832], 50-61 [5 June 1832], 104–108 [31 July 1832], 113–120 [14 August 1832]; 173–179 [14 Jan. 1833], 194–202 [13 March 1833]., available online at https://www.biodiversitylibrary.org/page/26730700
page(s): 117 [details]
basis of record
Petit, R. E. (2009). George Brettingham Sowerby, I, II & III: their conchological publications and molluscan taxa. <em>Zootaxa.</em> 2189: 1–218., available online at http://www.mapress.com/zootaxa/2009/f/z02189p218f.pdf [details]
additional source
Keen, A. M. (1971). Sea Shells of Tropical West America. Marine mollusks from Baja California to Peru. ed. 2. Stanford University Press. xv, 1064 pp., 22 pls.
page(s): p. 906 [details]
additional source
Pace, S. (1903). Contributions to the study of Columbellidae: No 1. <em>Proceedings of the Malacological Society of London.</em> 5: 36-154., available online at https://www.biodiversitylibrary.org/page/15168375
page(s): p. 101. [details]
From editor or global species database
Status Keen (1971:906) discussed this species stating that the original material is lost, and that three specimens in NHMUK with the name livida on the label correspond to a good species of Engina. She further states: "Because there is no proof that Sowerby wrote the label or even saw the material from the Galápagos, it seems best to regard his species as a nomen oblitum, a forgotten name not to be brought into the formal literature without action by the International Commission on Zoological Nomenclature". [details]