Patera (gastropod)

Patera
Patera perigraptus
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia clade Euthyneura clade Panpulmonata clade Eupulmonata clade Stylommatophora informal group Sigmurethra
Superfamily:	Helicoidea
Family:	Polygyridae
Genus:	Patera Albers, 1850[1]

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.^[2]

These snails are known only from the eastern United States.^[3]

Species

Species include:^[4]

• 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

References

1. (German) Albers J. C. (1850). Die Heliceen nach natürlicher Verwandtschaft systematisch geordnet. Berlin, 1-262 pp.
2. Pilsbry, H. A. (1940). Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, 1(2): 748.
3. Pilsbry, H. A. (1940). Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, 1(2): 747-761.
4. Patera. Integrated Taxonomic Information System (ITIS).