WoRMS taxon details
original description
(of Achatina occidentalis Pilsbry, 1904) Pilsbry, H. A. (1904-1905). <i>Manual of conchology, structural and systematic, with illustrations of the species</i>. Ser. 2, Pulmonata. Vol. 17: African Achatinidae. pp i-v, 1-232, pls 1-65. Philadelphia, published by the Conchological Department, Academy of Natural Sciences. [pp. 1-64, pls. 1-10, Sept. 23, 1904; pp. 65-112, pls. 11-23, Nov. 26, 1904; pp. 113-208, pls. 24-43, Mar. 1, 1905; pp. 209-232, i-xviii, figs. 1-6, 1-9, pls. 44-65, Jun. 1905]. , available online at https://www.biodiversitylibrary.org/page/1101855 page(s): 23, pl. 45, fis 1, 2 [details]
original description
(of Achatina natalensis L. Pfeiffer, 1855) Pfeiffer, L. (1855 ["1854"]). Descriptions of fifty-seven new species of Helicea, from Mr. Cuming's collection. <em>Proceedings of the Zoological Society of London.</em> 22(277): 286–288; 22(278): 289–298 [8 May 1855]., available online at https://biodiversitylibrary.org/page/30747711 page(s): 294 [details]
additional source
Brown, K. & Evans, M. (2021). The achatinid landshells of southern Africa. ConchBooks, Germany. 138 pp. page(s): 65. [details]
status source
Mead, A. R. (2004). Comparative reproductive anatomy in the South African giant land snails (Gastropoda: Pulmonata: Achatinidae). <em>Zoologische Mededelingen 78(25): 417–449.</em> , available online at https://pdfs.semanticscholar.org/3c49/be48a8a1ae0e922ae7536f103fc0b2eca08a.pdf?_ga=2.216295702.1606998700.1586557262-2075431801.1586557262 page(s): 422 [details]
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