sourceTaxonName: Mesodon clausus (Say, 1821)
sourceTaxonPath: Animalia | Mollusca | Gastropoda | Stylommatophora | Polygyridae | Mesodon | Mesodon clausus
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