title: Patera (gastropod)
text: # Patera (gastropod)
  
  Patera is a genus of land snails in the family Polygyridae.
  
  The name is from the Latin patera ("a saucer"), and refers to the highly depressed, saucer-like shape of the shells of these snails. In addition to flattened shells, members of the group have an imperforate umbilicus and a single tooth on the parietal wall of the aperture.
  
  These snails are known only from the eastern United States.
  
  ## Species
  
  Species include:
  
  * Patera appressa – flat bladetooth
  * Patera binneyana – half-lidded oval
  * Patera clarki – dwarf proud globe
     * Patera clarki clarki
     * Patera clarki nantahala – noonday globe
  * Patera clenchi – Calico Rock oval, Clench's middle-toothed land snail
  * Patera indianorum – lidded oval
  * Patera kiowaensis – drywoods oval
  * Patera laevior – smooth bladetooth
  * Patera leatherwoodi – Pedernales oval
  * Patera panselenus – Virginia bladetooth
  * Patera pennsylvanica – proud globelet
  * Patera perigrapta – engraved bladetooth
  * Patera roemeri – Texas oval
  * Patera sargentiana – grand bladetooth
  