Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance. Leptodea fragilis, Specimen #475, specimen, October 5, 1975; (https://digital.library.unt.edu/ark:/67531/metadc35185/m1/1/: accessed December 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .