Punctum minutissimum (I. Lea, 1841) Small Spot

Scanning Electron Micrographs (SEM)

    Paint Rock River system, Estill Fork, 1 mi N. Estillfork, Jackson County, Alabama. The three specimens illustrated range in size from 1.09  to 1.14 mm. Bob Winters! 17 March, 2015. Specimens culled by H. G. Lee, and SEM produced in collaboration with Dr. Ann Heatherington, Dept. Geological Sciences, University of Florida, Gainesville, FL. Also see: Punctum minutissimum (I. Lea, 1841) Small Spot.