World Register of Marine Species (WoRMS)
Epitonium irregulare (G. B. Sowerby II, 1844)
MolluscaBase eds. (2026). MolluscaBase. Epitonium irregulare (G. B. Sowerby II, 1844). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=207954 on 2026-08-01
Sowerby, G. B. II. (1844). Monograph of the genus Scalaria. In G. B. Sowerby II (ed.), Thesaurus conchyliorum, or monographs of genera of shells. Vol. 1 (4): 83bis-108bis, pls 32-35. London, privately published.
Sowerby, G. B. II. (1873-1874). Monograph of the genus Scalaria. In: Conchologia iconica, or illustrations of the shells of molluscous animals, vol. 19, pls 1-16 and unpaginated text. L. Reeve, London [pls. 2-5, Apr. 1873; 6-11, Aug. 1873; 12, 13, Oct. 1873; 1, 14-16, Jun. 1874].
Masahito (Prince) & Habe T. (1976). Systematic study of Japanese Epitoniidae (III). Bulletin of the National Science Museum, Series A (Zoology). 2 (3), 169–174.