Jeffreys, J. G. (1856). On the marine Testacea of the Piedmontese coast. <em>Annals and Magazine of Natural History.</em> ser. 2, 17: 155-188., available online athttp://biodiversitylibrary.org/page/22069750 page(s): 184, pl. 2, figs 10, 11 [details]
original descriptionJeffreys, J. G. (1856). On the marine Testacea of the Piedmontese coast. <em>Annals and Magazine of Natural History.</em> ser. 2, 17: 155-188., available online athttp://biodiversitylibrary.org/page/22069750 page(s): 184, pl. 2, figs 10, 11 [details]