Summary[edit] Description: English: The land snail, Xolotrema notata (syn. Triodopsis notata). Date: 1878. Source: Binney, William G. (1878). The Terrestrial Air-Breathing Mollusks of the United States and Adjacent Territories of North America. Vol. 5 (plates). Bull. Mus. Comparative Zool., Harvard. Plate 14. Scanned by Tim Ross in 2007. Author: William Greene Binney (1833-1909; U.S.A.).