Lucilla intermedia (Morrison, 1942) [as Helicodiscus] Intermediate Coil

Scanning Electron Micrographs (SEM)

    Drift, Larkin Fork, Francisco, Jackson County, Alabama 1/4/2011 (top specimen (two views) 1.96 mm. and bottom specimen (dorsal view) 1.77 mm). Collected by Bob Winters. Helicodiscus hadenoecus Hubricht, 1962 appears to be a related species. SEMs produced in collaboration with Dr. Ann Heatherington, Dept. Geological Sciences, University of Florida, Gainesville, FL.