Description: Turbonilla powhatani, 4 mm. Lower Chesapeake Bay, Virginia Beach County, VA - 10/05/17. Photo by Robert Aguilar, Smithsonian Environmental Research Center. Identified by Harry Lee. Date: 4 February 2006, 01:20. Source: Turbonilla powhatani_(I1668)_0918. Author: Smithsonian Environmental Research Center.