sourceTaxonName: Pupilla muscorum (Linnaeus, 1758)
sourceTaxonPath: Animalia | Mollusca | Gastropoda | Stylommatophora | Pupillidae | Pupilla | Pupilla muscorum
targetTaxonName: top and at base of limestone support wall
localityName: Hyde Park, W side of Metra Electric train line S of 60th Street, at U. of C. Pre