Notes on the invertebrate fauna of the Dakota formation, with descriptions of new molluscan formsDOI: info:10.5479/si.00963801.17-995.131v. 17No. 995131–138, 1 pl.
White, Charles A. 1894. "Notes on the invertebrate fauna of the Dakota formation, with descriptions of new molluscan forms." Proceedings of the United States National Museum, 17, (995) 131–138, 1 pl.. https://doi.org/10.5479/si.00963801.17-995.131.