| Vertigo pygmaea (Draparnaud, 1801) Crested Vertigo | 
| Scanning Electron Micrograph (SEM) | 
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| Paint Rock River system, Estill Fork, 1 mi N. Estillfork, Jackson County, Alabama (1.71 mm.). Bob Winters! 3 January, 2016. Specimens culled by H. G. Lee, and SEM produced in collaboration with Dr. Ann Heatherington, Dept. Geological Sciences, University of Florida, Gainesville, FL. |