original description
Jeffreys, J. G. (1883). On the Mollusca procured during the 'Lightning' and 'Porcupine' Expeditions 1868-70. (Part V). <em>Proceedings of the Zoological Society of London.</em> 1882: 656-687, pl. 49-50., available online at http://www.biodiversitylibrary.org/page/28679082
page(s): 668-669, pl. 50 fig. 1 [details]
context source (Deepsea)
Gofas, S.; Luque, Á. A.; Templado, J.; Salas, C. (2017). A national checklist of marine Mollusca in Spanish waters. <em>Scientia Marina.</em> 81(2) : 241-254, and supplementary online material., available online at https://doi.org/10.3989/scimar.04543.21a [details]
From editor or global species database
Type locality «Porcupine» sta. 3a, Bay of Biscay and 14, off Portugal [details]