Siphocypraea ketteri Petuch, 1994
Statigraphy: Golden Gate Member of the Tamiami Formation
Location: Near Imokalee, Collier County, Florida USA.
Notes: Another form transitional between S. carolinensis and S. problematica. Differs from S. trippeana by having a wider shell and flattened base with noticeable wrinkles along the base. Petuch assigns this species in the genus Pseudadusta.