MolluscaBase name details
original description
(of Physa oleacea Tryon, 1866) Tryon, G. W. (1866). Descriptions of new fresh-water shells of the United States. <em>American Journal of Conchology.</em> 2(1): 4-7, plate 2., available online at https://www.biodiversitylibrary.org/page/15840987
page(s): 6, pl. 2, fig, 6 [details]
basis of record
Crandall, O. A. (1901). The America Physae. <em>The Nautilus.</em> 15(4): 42-45, plate 2., available online at https://www.biodiversitylibrary.org/page/1738423
page(s): 45 [details]