original description
Dautzenberg, P. (1912). Mission Gruvel sur la côte occidentale d'Afrique (1909-1910): Mollusques marins. <em>Annales de l'Institut Océanographique, Paris (Nouvelle Série).</em> 5(3): 1-111, pl. 1-3. [Title page dated 1913; published December 1912]., available online at http://www.biodiversitylibrary.org/item/46615
page(s): 57, pl. 2 fig. 28-29 [details]
additional source
Thiele, J. (1925). Gastropoden der Deutschen Tiefsee-Expedition. II Teil. <em>Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf dem Dampfer "Valdivia" 1898-1899.</em> 17(2): 35-382, pls 13-46 [reprints paginated 1–348, pls 1–34].
page(s): 118 [152]. [details] Available for editors [request]
subsequent type designation
Peñas, A. & Rolán, E. (1999). La familia Pyramidellidae Gray, 1840 (Mollusca, Gastropoda, Heterostropha) en Africa Occidental. 4. los géneros <i>Megastomia, Odostomia, Noemiamea</i> y <i>Syrnola</i>. <em>Iberus.</em> supplement 5 [to vol. 17]: 1-150., available online at https://zenodo.org/record/4731112
page(s): 136-137 [details]
From editor or global species database