original description
(of Helicina trochiformis G. B. Sowerby II, 1842) Sowerby, G. B. II. (1842). Monograph of the genus <i>Helicina</i>. In G. B. Sowerby II (ed.), <i>Thesaurus conchyliorum, or monographs of genera of shells</i>. Vol. 1 (1): 1–16, pls 1–3. London, privately published [May 1842]. , available online at https://www.biodiversitylibrary.org/page/11076187
page(s): 10, pl. 2, fig. 90 [details]
basis of record
Faustino, L. A. (1930). Summary of Philippine land shells. <em>Philippine Journal of Science.</em> 42(1): 85-198.
page(s): 174 [details]
From editor or global species database
Type locality Philippines, "Isle of Negros" [details]