References:
Baker, H. B. 1962. Type land snails in the Academy of Natural Sciences of Philadelphia. I. North America, north of Mexico. Proceedings of the Academy of Natural Sciences of Philadelphia 114: 1?21.
Pilsbry, H. A. 1948. Land Mollusca of North America (north of Mexico). The Academy of Natural Sciences of Philadelphia Monographs 3, 2(2): i-xlvii, 521?1113.
Solem, A. 1986. A collectors tale. Field Museum of Natural History Bulletin 57: 22?25.
TAXA LINKS
Kingdom:
Animalia
Animalia
Phylum:
Mollusca
Mollusca
Class:
Gastropoda
Gastropoda
Order:
Stylommatophora
Stylommatophora
Family:
Zonitidae
Zonitidae
Elevation Distribution:
Phenology
Phenology
Pilsbry.