WoRMS taxon details
original description
(of Pyramidella maculosa Lamarck, 1822) Lamarck, [J.-B. M.] de. (1822). Histoire naturelle des animaux sans vertèbres. Tome sixième, 2me partie. Paris: published by the author, 232 pp., available online at http://biodiversitylibrary.org/page/13181853 page(s): 223 [details]
original description
(of Obeliscus sulcatus 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): 807, pl. 171, fig. 34. [details]
original description
(of Obeliscus tessellatus 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): 808, pl. 171, fig. 16. [details]
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