MolluscaBase taxon details
original description
(of Helix beckiana L. Pfeiffer, 1842) Pfeiffer, L. (1842). <i>Symbolae ad historiam Heliceorum</i>, Part II [<i>Sectio altera</i>.] Kassel (Th. Fischer). 147 pp. [< 21 December]. , available online at https://www.biodiversitylibrary.org/page/12254177
page(s): 23 [details]
additional source
Semper, C. (1870-1885). <i>Reisen im Archipel der Philippinen, Theil 2. Wissenschaftliche Resultate. Band 3, Landmollusken</i>. Wiesbaden: Kreidel. [1-80, pls 1-7 (1870); 81-128 (1873); 129-168 (1874); 169-224 (1877); 225-264, pls 19–20, 22–23 (1880); 265–290, pl. 21 (1882); 291-327, pls 24–27 (1885)] (publication dates after Zool. Record)., available online at https://biodiversitylibrary.org/page/32630046
page(s): 114 [details]
additional source
Clench, W. J. & Archer, A. F. (1933). Land mollusks from the islands of Mindoro and Lubang, Philippines. <em>Papers of the Michigan Academy of Science, Arts and Letters.</em> 17: 535-552, pls. 57-58.
page(s): 535 [details] Available for editors [request]