original description
Brown, A. P. & Pilsbry, H. A. (1914). Fresh-water mollusks of the Oligocene of Antigua. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 66: 209-213., available online at https://www.biodiversitylibrary.org/page/1856563
page(s): 212, pl. 9, figs 1a, 3a, 5a, 6a [details]
additional source
Pilsbry, H. A. (1930). <em>Planorbis siliceus</em> Brown and Pilsbry. <em>The Nautilus.</em> 43(4): 138., available online at https://www.biodiversitylibrary.org/page/8515192 [details]
From editor or global species database
Type locality Cliffs at Dry Hill (near St. John's), Antigua, Antigua and Barbuda [details]