Britton, Joseph; Britton, David; Britton, Michael & La Grove, M. Lampsilis teres, Specimen #386, specimen, August 27, 1979; (https://digital.library.unt.edu/ark:/67531/metadc34428/m1/1/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .