sourceTaxonName: Anguispira alternata (Say, 1817)
sourceTaxonPath: Animalia | Mollusca | Gastropoda | Stylommatophora | Discidae | Anguispira | Anguispira alternata
targetTaxonName: layer of sand at bottom of bank and from gravel layer near bottom of bank
localityName: Rock River, about 3 mi. SW of Como