WoRMS name details
original description
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
Odhner, N. H. J. (1919). Contribution à la faune malacologique de Madagascar. <em>Arkiv för Zoologi.</em> 12(6): 1-52., available online at http://www.biodiversitylibrary.org/page/6455070 [details]
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