Summary[edit] Description: Turbonilla toyatani, 6 mm. Old Plantation Flats, Northampton County, VA - 08/31/16. Photo by Robert Aguilar, Smithsonian Environmental Research Center. Verified by Harry G. Lee. Date: 21 November 2006, 01:26. Source: Turbonilla toyatani_(I1331). Author: Smithsonian Environmental Research Center.