sourceTaxonName: Valvata bicarinata I. Lea, 1841
sourceTaxonPath: Animalia | Mollusca | Gastropoda | Heterostropha | Valvatidae | Valvata | Valvata bicarinata
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