WoRMS taxon details
original description
(of Pyramidella gracilis A. Adams, 1854) Adams, A. (1854). Monographs of the genera <i>Eulima</i>, <i>Niso</i>, <i>Leiostraca</i>, <i>Obeliscus</i>, <i>Pyramidella</i>, and <i>Monoptygma</i>. In G. B. Sowerby II (ed.), <i>Thesaurus conchyliorum, or monographs of genera of shells</i>. Vol. 2 (15): 793-825, pl. 169-172. London, privately published. , available online at https://www.biodiversitylibrary.org/page/11076023 page(s): 815, pl. 172, figs 14, 15. [details]
basis of record
Higo, S. & Goto, Y. (1993) A Systematic List of Molluscan Shells from the Japanese Is. and the Adjacent Area. Elle Scientific Publications, Yao, Japan, xxii + 693 + 13 + 149 pp. page(s): 383 [details]
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