Patera (gastropod) explained

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.^[1]

These snails are known only from the eastern United States.^[2]

Species

Species include:^[3]

• 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

Notes and References

1. Pilsbry, H. A. (1940). Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, 1(2): 748.
2. Pilsbry, H. A. (1940). Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, 1(2): 747-761.
3. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=567086 Patera.