Gastrocopta tappaniana (C. B. Adams, 1841) White Snaggletooth

Scanning Electron Micrographs (SEM)

Gastrocopta tappaniana (C.B. Adams, 1841) White SnaggletoothGastrocopta tappaniana (C.B. Adams, 1841) White Snaggletooth

Gastrocopta tappaniana (C. B. Adams, 1841) White Snaggletooth

    Paint Rock River system, Estill Fork, 1 mi N. Estillfork, Jackson County, Alabama (1.41 mm. (left and bottom) and 1.58 mm. (right) in maximum diameter). Bob Winters! 17 March, 2015. Note the smaller shell's distinct infraparietal lamella, a feature not previously reported in this common and widespread species. Some specimens of the closely-related G. pentodon may develop such an accessory denticle. Specimens culled by H. G. Lee, and SEM produced in collaboration with Dr. Ann Heatherington, Dept. of Geology, University of Florida, Gainesville, FL.  Also see: Gastrocopta tappaniana (C. B. Adams, 1841 [not 1842 auctores]) White Snaggletooth.

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