original description
(of Helicina occulta Say, 1831) Say, T. (1831). Description of several new species of shells, and of a new species of <i>Lumbricus</i>. <em>Transylvania Journal of Medicine and the Associate Sciences.</em> 4(4): 525-529., available online at https://babel.hathitrust.org/cgi/pt?id=nnc2.ark:/13960/t51g3h18z;view=1up;seq=533
page(s): 528-529 [details]
original description
(of Helicina rubella Green, 1832) Green, J. (1832). Notes of a naturalist. The Cabinet of Natural History and American Rural Sports, 2: 289-291 , available online at http://biodiversitylibrary.org/page/27979353
page(s): 291 [details]
basis of record
InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]
additional source
Morrison, J. P. E. (1929). On the occurrence of <i>Hendersonia</i> in Crawford County, Wisconsin. <em>The Nautilus.</em> 43(2): 41-45., available online at https://www.biodiversitylibrary.org/page/8515089 [details]
additional source
Hubricht, L. (1960). <i>Hendersonia occulta</i> fossil in Mississippi. <em>The Nautilus.</em> 74(2): 83., available online at https://www.biodiversitylibrary.org/page/8523958 [details]
additional source
Clarke, A. H., Jr. (1966). Interglacial <i>Hendersonia occulta</i> in Canada. <em>The Nautilus.</em> 79(4): 137-138., available online at https://www.biodiversitylibrary.org/page/8517558 [details]
From editor or global species database
From other sources