Helicodiscus aldrichianus (G. Clapp, 1907) Burrowing Coil

Scanning Electron Micrograph (SEM)

Helicodiscus aldrichianus (G. Clapp, 1907) Burrowing Coil

    Paint Rock River system, Estill Fork, 1 mi N. Estillfork, Jackson County, Alabama, 1.76 mm. maximum diameter (Dmax). Bob Winters! 17 March, 2015. Specimen culled by H. G. Lee, and SEM produced in collaboration with Dr. Ann Heatherington, Dept. of Geology, University of Florida, Gainesville, FL.

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