original description
(of Melania hohenackeri R. A. Philippi, 1851) Philippi, R. A. (1851-1852). Centuria quinta testaceorum novorum. <em>Zeitschrift für Malakozoologie.</em> 8(5): 74-80 [July 1851]; 8(6): 81-96 [August 1851]; 8(8): 123-126 [date not stated, 1851]; 9(2): 20-29 [March 1852]., available online at http://biodiversitylibrary.org/page/16300581
page(s): 82 [details]
original description
(of Doryssa guayanensis Vernhout, 1914) Vernhout, J. H. (1914). The non-marine molluscs of Surinam. <em>Notes from the Leyden Museum.</em> 36: 1-46, pls. 1-2., available online at https://www.biodiversitylibrary.org/page/14021311
page(s): 35, fig. 12 [details]
additional source
Simone, L. R. L. (2006). <i>Land and Freshwater Molluscs of Brazil</i>. Editora Grafíca Bernardi, FAPESP. São Paulo, 390 pp.
page(s): 73 [details]
additional source
Vernhout, J. H. (1914). The non-marine molluscs of Surinam. <em>Notes from the Leyden Museum.</em> 36: 1-46, pls. 1-2., available online at https://www.biodiversitylibrary.org/page/14021311
page(s): 35, 41, 44 [details]
additional source
Vernhout, J. H. (1914). On a new variety of <i>Ampullaria crassa</i> Swainson from French Guyana. <em>Notes from the Leiden Museum.</em> 36: 47-48, pl. 2, figs. 15a, b., available online at https://www.biodiversitylibrary.org/page/14021311#page/61/
page(s): 47 [details]
identification resource
Pointier J.P. (ed.). (2015). <i>Freshwater molluscs of Venezuela and their medical and veterinary importance</i>. Harxheim: ConchBooks. 228 pp. [details]
From editor or global species database
Type locality Surinam, in mountain streams [details]