Bassett, Lawrence, and Michael R.J. Forstner. “Acute Bladder Snails, Physa Acuta Draparnaud 1805, As Ectosymbionts of the Endangered Houston Toad, Bufo (Anaxyrus) Houstonensis Sanders 1953”. Reptiles & Amphibians 29, no. 1 (December 19, 2022): 430–432. Accessed November 24, 2024. https://journals.ku.edu/reptilesandamphibians/article/view/17964.