MolluscaBase name details
original description
Albers, J. C. & Martens, E. von. (1860). <i>Die Heliceen nach natürlicher Verwandtschaft systematisch geordnet von Joh. Christ. Albers</i>. Ed. 2. Pp. i-xviii, 1-359. Leipzig: Engelman [original manuscript of Albers edited and published by Martens]., available online at https://www.biodiversitylibrary.org/page/11648540
page(s): 54 [details]
original description
(of Ryssota Albers, 1850) Albers, J. C. (1850). Die Heliceen nach natürlicher Verwandtschaft systematisch geordnet. <em>Berlin: Enslin.</em> 262 pp., available online at https://www.biodiversitylibrary.org/page/11965983
page(s): 61 [details]
additional source
Barnett, J. L. (1984). Philippine land snails - Benguet. <em>Hawaiian Shell News.</em> 32(8): 11., available online at https://www.conchology.be/?t=5002&year=1984&volume=8&hsn=10294
page(s): Fig. 9; note: An unidentified species from Benguet, Philippines [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): 68 [details]