Vitricythara lavalleeana (d'Orbigny, 1847) Lavallee's Mangelia

[+ V. metria (Dall, 1903); type of Vitricythara Fargo in Olsson and Harbison, 1953 by O.D.]

Scanning electron micrographs (SEM)

    Lower Pinecrest beds, Upper Tamiami Formation, Sarasota County, Florida (3.98 mm. on the top and 4.52 mm. on the bottom). SEMs produced in collaboration with Dr. Ann Heatherington, Dept. Geological Sciences, University of Florida, Gainesville, FL.