MolluscaBase taxon details
original description
(of Clausilia nivea L. Pfeiffer, 1855) Pfeiffer, L. (1855 ["1854"]). Descriptions of fifty-seven new species of Helicea, from Mr. Cuming's collection. <em>Proceedings of the Zoological Society of London.</em> 22(277): 286–288; 22(278): 289–298 [8 May 1855]., available online at https://biodiversitylibrary.org/page/30747711
page(s): 296 [details]
original description
(of Clausilia incrustata O. Boettger, 1883) Boettger, O. (1883). On new Clausiliae from the Levant, collected by Vice-Admiral T. Spratt, R.N. <em>Proceedings of the Zoological Society of London.</em> 51 (3): 324-343, pl. 33-34. London [October]., available online at https://www.biodiversitylibrary.org/page/30827968
page(s): 339, Plate XXXIV. fig. 17 [details]